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Finding the Fourth Proportional to 520,099.28, 780,151.89 and 160,265.42

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Solution

The fourth proportional to 520,099.28, 780,151.89 and 160,265.42 is: 240,399.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,099.28 : 780,151.89 = 160,265.42 : x
  2. Step 2: Convert to fraction form
    520,099.28/780,151.89 = 160,265.42/x
  3. Step 3: Cross multiply
    520,099.28x = 780,151.89 × 160,265.42
  4. Step 4: Simplify right side
    520,099.28x = 125,031,366,413.88
  5. Step 5: Solve for x
    x = 125,031,366,413.88/520,099.28
  6. Step 6: Final answer
    x = 240,399.04

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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.