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Finding the Fourth Proportional to 220,584.76, 304,324.50 and 129,885.28

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Solution

The fourth proportional to 220,584.76, 304,324.50 and 129,885.28 is: 179,193.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,584.76 : 304,324.50 = 129,885.28 : x
  2. Step 2: Convert to fraction form
    220,584.76/304,324.50 = 129,885.28/x
  3. Step 3: Cross multiply
    220,584.76x = 304,324.50 × 129,885.28
  4. Step 4: Simplify right side
    220,584.76x = 39,527,272,893.36
  5. Step 5: Solve for x
    x = 39,527,272,893.36/220,584.76
  6. Step 6: Final answer
    x = 179,193.13

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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.