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Finding the Fourth Proportional to 149,339.20, 224,008.80 and 137,934.40

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Solution

The fourth proportional to 149,339.20, 224,008.80 and 137,934.40 is: 206,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,339.20 : 224,008.80 = 137,934.40 : x
  2. Step 2: Convert to fraction form
    149,339.20/224,008.80 = 137,934.40/x
  3. Step 3: Cross multiply
    149,339.20x = 224,008.80 × 137,934.40
  4. Step 4: Simplify right side
    149,339.20x = 30,898,519,422.72
  5. Step 5: Solve for x
    x = 30,898,519,422.72/149,339.20
  6. Step 6: Final answer
    x = 206,901.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.