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Finding the Fourth Proportional to 224,775.20, 310,177.32 and 129,283.49

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Solution

The fourth proportional to 224,775.20, 310,177.32 and 129,283.49 is: 178,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,775.20 : 310,177.32 = 129,283.49 : x
  2. Step 2: Convert to fraction form
    224,775.20/310,177.32 = 129,283.49/x
  3. Step 3: Cross multiply
    224,775.20x = 310,177.32 × 129,283.49
  4. Step 4: Simplify right side
    224,775.20x = 40,100,804,897.56
  5. Step 5: Solve for x
    x = 40,100,804,897.56/224,775.20
  6. Step 6: Final answer
    x = 178,404.05

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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.