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Finding the Fourth Proportional to 224,599.22, 309,998.96 and 129,160.98

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Solution

The fourth proportional to 224,599.22, 309,998.96 and 129,160.98 is: 178,272.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,599.22 : 309,998.96 = 129,160.98 : x
  2. Step 2: Convert to fraction form
    224,599.22/309,998.96 = 129,160.98/x
  3. Step 3: Cross multiply
    224,599.22x = 309,998.96 × 129,160.98
  4. Step 4: Simplify right side
    224,599.22x = 40,039,769,472.58
  5. Step 5: Solve for x
    x = 40,039,769,472.58/224,599.22
  6. Step 6: Final answer
    x = 178,272.08

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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.