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Finding the Fourth Proportional to 238,348.32, 328,977.98 and 136,432.86

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Solution

The fourth proportional to 238,348.32, 328,977.98 and 136,432.86 is: 188,310.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,348.32 : 328,977.98 = 136,432.86 : x
  2. Step 2: Convert to fraction form
    238,348.32/328,977.98 = 136,432.86/x
  3. Step 3: Cross multiply
    238,348.32x = 328,977.98 × 136,432.86
  4. Step 4: Simplify right side
    238,348.32x = 44,883,406,006.26
  5. Step 5: Solve for x
    x = 44,883,406,006.26/238,348.32
  6. Step 6: Final answer
    x = 188,310.14

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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.