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Finding the Fourth Proportional to 425,517.84, 638,292.96 and 159,250.32

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Solution

The fourth proportional to 425,517.84, 638,292.96 and 159,250.32 is: 238,881.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,517.84 : 638,292.96 = 159,250.32 : x
  2. Step 2: Convert to fraction form
    425,517.84/638,292.96 = 159,250.32/x
  3. Step 3: Cross multiply
    425,517.84x = 638,292.96 × 159,250.32
  4. Step 4: Simplify right side
    425,517.84x = 101,648,358,133.75
  5. Step 5: Solve for x
    x = 101,648,358,133.75/425,517.84
  6. Step 6: Final answer
    x = 238,881.54

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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.