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Finding the Fourth Proportional to 159,280, 238,920 and 48,472

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Solution

The fourth proportional to 159,280, 238,920 and 48,472 is: 72,708

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,280 : 238,920 = 48,472 : x
  2. Step 2: Convert to fraction form
    159,280/238,920 = 48,472/x
  3. Step 3: Cross multiply
    159,280x = 238,920 × 48,472
  4. Step 4: Simplify right side
    159,280x = 11,580,930,240
  5. Step 5: Solve for x
    x = 11,580,930,240/159,280
  6. Step 6: Final answer
    x = 72,708

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