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Finding the Fourth Proportional to 520,008.80, 780,087.01 and 160,208.86

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Solution

The fourth proportional to 520,008.80, 780,087.01 and 160,208.86 is: 240,336.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,008.80 : 780,087.01 = 160,208.86 : x
  2. Step 2: Convert to fraction form
    520,008.80/780,087.01 = 160,208.86/x
  3. Step 3: Cross multiply
    520,008.80x = 780,087.01 × 160,208.86
  4. Step 4: Simplify right side
    520,008.80x = 124,976,847,355.38
  5. Step 5: Solve for x
    x = 124,976,847,355.38/520,008.80
  6. Step 6: Final answer
    x = 240,336.02

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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.