Home / 425,627.61-638,507.03-145,079.25

Finding the Fourth Proportional to 425,627.61, 638,507.03 and 145,079.25

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Solution

The fourth proportional to 425,627.61, 638,507.03 and 145,079.25 is: 217,641.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,627.61 : 638,507.03 = 145,079.25 : x
  2. Step 2: Convert to fraction form
    425,627.61/638,507.03 = 145,079.25/x
  3. Step 3: Cross multiply
    425,627.61x = 638,507.03 × 145,079.25
  4. Step 4: Simplify right side
    425,627.61x = 92,634,120,306.73
  5. Step 5: Solve for x
    x = 92,634,120,306.73/425,627.61
  6. Step 6: Final answer
    x = 217,641.24

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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.