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Finding the Fourth Proportional to 425,836.89, 638,730.14 and 159,575.13

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Solution

The fourth proportional to 425,836.89, 638,730.14 and 159,575.13 is: 239,353.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,836.89 : 638,730.14 = 159,575.13 : x
  2. Step 2: Convert to fraction form
    425,836.89/638,730.14 = 159,575.13/x
  3. Step 3: Cross multiply
    425,836.89x = 638,730.14 × 159,575.13
  4. Step 4: Simplify right side
    425,836.89x = 101,925,444,327.54
  5. Step 5: Solve for x
    x = 101,925,444,327.54/425,836.89
  6. Step 6: Final answer
    x = 239,353.25

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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.