Home / 224,918.52-310,387.86-129,423.30

Finding the Fourth Proportional to 224,918.52, 310,387.86 and 129,423.30

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Solution

The fourth proportional to 224,918.52, 310,387.86 and 129,423.30 is: 178,604.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,918.52 : 310,387.86 = 129,423.30 : x
  2. Step 2: Convert to fraction form
    224,918.52/310,387.86 = 129,423.30/x
  3. Step 3: Cross multiply
    224,918.52x = 310,387.86 × 129,423.30
  4. Step 4: Simplify right side
    224,918.52x = 40,171,421,121.14
  5. Step 5: Solve for x
    x = 40,171,421,121.14/224,918.52
  6. Step 6: Final answer
    x = 178,604.33

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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.