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Finding the Fourth Proportional to 151,648, 227,472 and 40,840

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Solution

The fourth proportional to 151,648, 227,472 and 40,840 is: 61,260

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,648 : 227,472 = 40,840 : x
  2. Step 2: Convert to fraction form
    151,648/227,472 = 40,840/x
  3. Step 3: Cross multiply
    151,648x = 227,472 × 40,840
  4. Step 4: Simplify right side
    151,648x = 9,289,956,480
  5. Step 5: Solve for x
    x = 9,289,956,480/151,648
  6. Step 6: Final answer
    x = 61,260

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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.