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Finding the Fourth Proportional to 353,328.49, 487,549.14 and 238,856.14

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Solution

The fourth proportional to 353,328.49, 487,549.14 and 238,856.14 is: 329,591.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,328.49 : 487,549.14 = 238,856.14 : x
  2. Step 2: Convert to fraction form
    353,328.49/487,549.14 = 238,856.14/x
  3. Step 3: Cross multiply
    353,328.49x = 487,549.14 × 238,856.14
  4. Step 4: Simplify right side
    353,328.49x = 116,454,105,640.72
  5. Step 5: Solve for x
    x = 116,454,105,640.72/353,328.49
  6. Step 6: Final answer
    x = 329,591.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.