Home / 520,200.45-780,300.68-165,250.35

Finding the Fourth Proportional to 520,200.45, 780,300.68 and 165,250.35

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Solution

The fourth proportional to 520,200.45, 780,300.68 and 165,250.35 is: 247,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,200.45 : 780,300.68 = 165,250.35 : x
  2. Step 2: Convert to fraction form
    520,200.45/780,300.68 = 165,250.35/x
  3. Step 3: Cross multiply
    520,200.45x = 780,300.68 × 165,250.35
  4. Step 4: Simplify right side
    520,200.45x = 128,944,959,648.99
  5. Step 5: Solve for x
    x = 128,944,959,648.99/520,200.45
  6. Step 6: Final answer
    x = 247,875.53

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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.