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Finding the Fourth Proportional to 208,444.62, 287,654.58 and 112,951.30

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Solution

The fourth proportional to 208,444.62, 287,654.58 and 112,951.30 is: 155,873.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,444.62 : 287,654.58 = 112,951.30 : x
  2. Step 2: Convert to fraction form
    208,444.62/287,654.58 = 112,951.30/x
  3. Step 3: Cross multiply
    208,444.62x = 287,654.58 × 112,951.30
  4. Step 4: Simplify right side
    208,444.62x = 32,490,958,761.95
  5. Step 5: Solve for x
    x = 32,490,958,761.95/208,444.62
  6. Step 6: Final answer
    x = 155,873.34

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1.5x scale

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.