Home / 442,944.40-664,513.50-143,455.25

Finding the Fourth Proportional to 442,944.40, 664,513.50 and 143,455.25

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Solution

The fourth proportional to 442,944.40, 664,513.50 and 143,455.25 is: 215,214.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,944.40 : 664,513.50 = 143,455.25 : x
  2. Step 2: Convert to fraction form
    442,944.40/664,513.50 = 143,455.25/x
  3. Step 3: Cross multiply
    442,944.40x = 664,513.50 × 143,455.25
  4. Step 4: Simplify right side
    442,944.40x = 95,327,951,394.20
  5. Step 5: Solve for x
    x = 95,327,951,394.20/442,944.40
  6. Step 6: Final answer
    x = 215,214.26

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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.