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Finding the Fourth Proportional to 224,510.70, 309,877.95 and 129,072.84

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Solution

The fourth proportional to 224,510.70, 309,877.95 and 129,072.84 is: 178,151.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,510.70 : 309,877.95 = 129,072.84 : x
  2. Step 2: Convert to fraction form
    224,510.70/309,877.95 = 129,072.84/x
  3. Step 3: Cross multiply
    224,510.70x = 309,877.95 × 129,072.84
  4. Step 4: Simplify right side
    224,510.70x = 39,996,827,059.88
  5. Step 5: Solve for x
    x = 39,996,827,059.88/224,510.70
  6. Step 6: Final answer
    x = 178,151.10

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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.