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Finding the Fourth Proportional to 493,251.40, 739,877.10 and 138,325.60

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Solution

The fourth proportional to 493,251.40, 739,877.10 and 138,325.60 is: 207,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,251.40 : 739,877.10 = 138,325.60 : x
  2. Step 2: Convert to fraction form
    493,251.40/739,877.10 = 138,325.60/x
  3. Step 3: Cross multiply
    493,251.40x = 739,877.10 × 138,325.60
  4. Step 4: Simplify right side
    493,251.40x = 102,343,943,783.76
  5. Step 5: Solve for x
    x = 102,343,943,783.76/493,251.40
  6. Step 6: Final answer
    x = 207,488.40

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Similar ratio
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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.