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Finding the Fourth Proportional to 520,200.22, 780,300.33 and 146,223.22

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Solution

The fourth proportional to 520,200.22, 780,300.33 and 146,223.22 is: 219,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,200.22 : 780,300.33 = 146,223.22 : x
  2. Step 2: Convert to fraction form
    520,200.22/780,300.33 = 146,223.22/x
  3. Step 3: Cross multiply
    520,200.22x = 780,300.33 × 146,223.22
  4. Step 4: Simplify right side
    520,200.22x = 114,098,026,819.66
  5. Step 5: Solve for x
    x = 114,098,026,819.66/520,200.22
  6. Step 6: Final answer
    x = 219,334.83

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.