Home / 280,267.55-386,781.82-157,802.10

Finding the Fourth Proportional to 280,267.55, 386,781.82 and 157,802.10

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Solution

The fourth proportional to 280,267.55, 386,781.82 and 157,802.10 is: 217,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,267.55 : 386,781.82 = 157,802.10 : x
  2. Step 2: Convert to fraction form
    280,267.55/386,781.82 = 157,802.10/x
  3. Step 3: Cross multiply
    280,267.55x = 386,781.82 × 157,802.10
  4. Step 4: Simplify right side
    280,267.55x = 61,034,981,592.88
  5. Step 5: Solve for x
    x = 61,034,981,592.88/280,267.55
  6. Step 6: Final answer
    x = 217,773.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.