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Finding the Fourth Proportional to 281,591.39, 423,585.71 and 255,254.97

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Solution

The fourth proportional to 281,591.39, 423,585.71 and 255,254.97 is: 383,968.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,591.39 : 423,585.71 = 255,254.97 : x
  2. Step 2: Convert to fraction form
    281,591.39/423,585.71 = 255,254.97/x
  3. Step 3: Cross multiply
    281,591.39x = 423,585.71 × 255,254.97
  4. Step 4: Simplify right side
    281,591.39x = 108,122,355,580.55
  5. Step 5: Solve for x
    x = 108,122,355,580.55/281,591.39
  6. Step 6: Final answer
    x = 383,968.98

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1.5x scale

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.