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Finding the Fourth Proportional to 520,200.42, 780,300.62 and 146,223.42

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Solution

The fourth proportional to 520,200.42, 780,300.62 and 146,223.42 is: 219,335.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,200.42 : 780,300.62 = 146,223.42 : x
  2. Step 2: Convert to fraction form
    520,200.42/780,300.62 = 146,223.42/x
  3. Step 3: Cross multiply
    520,200.42x = 780,300.62 × 146,223.42
  4. Step 4: Simplify right side
    520,200.42x = 114,098,224,553.40
  5. Step 5: Solve for x
    x = 114,098,224,553.40/520,200.42
  6. Step 6: Final answer
    x = 219,335.13

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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.