Home / 442,938.86-664,514.12-143,419.77

Finding the Fourth Proportional to 442,938.86, 664,514.12 and 143,419.77

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Solution

The fourth proportional to 442,938.86, 664,514.12 and 143,419.77 is: 215,163.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,938.86 : 664,514.12 = 143,419.77 : x
  2. Step 2: Convert to fraction form
    442,938.86/664,514.12 = 143,419.77/x
  3. Step 3: Cross multiply
    442,938.86x = 664,514.12 × 143,419.77
  4. Step 4: Simplify right side
    442,938.86x = 95,304,462,610.70
  5. Step 5: Solve for x
    x = 95,304,462,610.70/442,938.86
  6. Step 6: Final answer
    x = 215,163.92

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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.