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Finding the Fourth Proportional to 442,980.80, 664,471.20 and 232,591.40

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Solution

The fourth proportional to 442,980.80, 664,471.20 and 232,591.40 is: 348,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,980.80 : 664,471.20 = 232,591.40 : x
  2. Step 2: Convert to fraction form
    442,980.80/664,471.20 = 232,591.40/x
  3. Step 3: Cross multiply
    442,980.80x = 664,471.20 × 232,591.40
  4. Step 4: Simplify right side
    442,980.80x = 154,550,286,667.68
  5. Step 5: Solve for x
    x = 154,550,286,667.68/442,980.80
  6. Step 6: Final answer
    x = 348,887.10

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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.