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Finding the Fourth Proportional to 224,784.52, 310,202.40 and 129,288.76

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Solution

The fourth proportional to 224,784.52, 310,202.40 and 129,288.76 is: 178,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,784.52 : 310,202.40 = 129,288.76 : x
  2. Step 2: Convert to fraction form
    224,784.52/310,202.40 = 129,288.76/x
  3. Step 3: Cross multiply
    224,784.52x = 310,202.40 × 129,288.76
  4. Step 4: Simplify right side
    224,784.52x = 40,105,683,645.02
  5. Step 5: Solve for x
    x = 40,105,683,645.02/224,784.52
  6. Step 6: Final answer
    x = 178,418.35

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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.