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Finding the Fourth Proportional to 354,676.32, 489,443.72 and 193,531.41

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Solution

The fourth proportional to 354,676.32, 489,443.72 and 193,531.41 is: 267,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,676.32 : 489,443.72 = 193,531.41 : x
  2. Step 2: Convert to fraction form
    354,676.32/489,443.72 = 193,531.41/x
  3. Step 3: Cross multiply
    354,676.32x = 489,443.72 × 193,531.41
  4. Step 4: Simplify right side
    354,676.32x = 94,722,732,279.59
  5. Step 5: Solve for x
    x = 94,722,732,279.59/354,676.32
  6. Step 6: Final answer
    x = 267,068.10

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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.