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Finding the Fourth Proportional to 159,288, 238,932 and 48,480

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Solution

The fourth proportional to 159,288, 238,932 and 48,480 is: 72,720

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,288 : 238,932 = 48,480 : x
  2. Step 2: Convert to fraction form
    159,288/238,932 = 48,480/x
  3. Step 3: Cross multiply
    159,288x = 238,932 × 48,480
  4. Step 4: Simplify right side
    159,288x = 11,583,423,360
  5. Step 5: Solve for x
    x = 11,583,423,360/159,288
  6. Step 6: Final answer
    x = 72,720

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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.