Home / 287,787.60-431,743.64-110,294.73

Finding the Fourth Proportional to 287,787.60, 431,743.64 and 110,294.73

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Solution

The fourth proportional to 287,787.60, 431,743.64 and 110,294.73 is: 165,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,787.60 : 431,743.64 = 110,294.73 : x
  2. Step 2: Convert to fraction form
    287,787.60/431,743.64 = 110,294.73/x
  3. Step 3: Cross multiply
    287,787.60x = 431,743.64 × 110,294.73
  4. Step 4: Simplify right side
    287,787.60x = 47,619,047,651.54
  5. Step 5: Solve for x
    x = 47,619,047,651.54/287,787.60
  6. Step 6: Final answer
    x = 165,465.95

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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.