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Finding the Fourth Proportional to 220,463.77, 304,231.13 and 129,823.55

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Solution

The fourth proportional to 220,463.77, 304,231.13 and 129,823.55 is: 179,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,463.77 : 304,231.13 = 129,823.55 : x
  2. Step 2: Convert to fraction form
    220,463.77/304,231.13 = 129,823.55/x
  3. Step 3: Cross multiply
    220,463.77x = 304,231.13 × 129,823.55
  4. Step 4: Simplify right side
    220,463.77x = 39,496,365,317.11
  5. Step 5: Solve for x
    x = 39,496,365,317.11/220,463.77
  6. Step 6: Final answer
    x = 179,151.27

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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.