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Finding the Fourth Proportional to 287,848.48, 431,801.52 and 88,166.56

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Solution

The fourth proportional to 287,848.48, 431,801.52 and 88,166.56 is: 132,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,848.48 : 431,801.52 = 88,166.56 : x
  2. Step 2: Convert to fraction form
    287,848.48/431,801.52 = 88,166.56/x
  3. Step 3: Cross multiply
    287,848.48x = 431,801.52 × 88,166.56
  4. Step 4: Simplify right side
    287,848.48x = 38,070,454,621.17
  5. Step 5: Solve for x
    x = 38,070,454,621.17/287,848.48
  6. Step 6: Final answer
    x = 132,258.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.