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Finding the Fourth Proportional to 438,908.28, 658,362.41 and 106,484.28

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Solution

The fourth proportional to 438,908.28, 658,362.41 and 106,484.28 is: 159,726.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,908.28 : 658,362.41 = 106,484.28 : x
  2. Step 2: Convert to fraction form
    438,908.28/658,362.41 = 106,484.28/x
  3. Step 3: Cross multiply
    438,908.28x = 658,362.41 × 106,484.28
  4. Step 4: Simplify right side
    438,908.28x = 70,105,247,207.91
  5. Step 5: Solve for x
    x = 70,105,247,207.91/438,908.28
  6. Step 6: Final answer
    x = 159,726.42

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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.