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Finding the Fourth Proportional to 238,327.85, 358,780.23 and 217,116.88

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Solution

The fourth proportional to 238,327.85, 358,780.23 and 217,116.88 is: 326,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,327.85 : 358,780.23 = 217,116.88 : x
  2. Step 2: Convert to fraction form
    238,327.85/358,780.23 = 217,116.88/x
  3. Step 3: Cross multiply
    238,327.85x = 358,780.23 × 217,116.88
  4. Step 4: Simplify right side
    238,327.85x = 77,897,244,143.28
  5. Step 5: Solve for x
    x = 77,897,244,143.28/238,327.85
  6. Step 6: Final answer
    x = 326,849.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.