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Finding the Fourth Proportional to 201,787.60, 302,657.10 and 83,446.60

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Solution

The fourth proportional to 201,787.60, 302,657.10 and 83,446.60 is: 125,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,787.60 : 302,657.10 = 83,446.60 : x
  2. Step 2: Convert to fraction form
    201,787.60/302,657.10 = 83,446.60/x
  3. Step 3: Cross multiply
    201,787.60x = 302,657.10 × 83,446.60
  4. Step 4: Simplify right side
    201,787.60x = 25,255,705,960.86
  5. Step 5: Solve for x
    x = 25,255,705,960.86/201,787.60
  6. Step 6: Final answer
    x = 125,159.85

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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.