Home / 442,920.08-664,485.24-143,400.68

Finding the Fourth Proportional to 442,920.08, 664,485.24 and 143,400.68

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Solution

The fourth proportional to 442,920.08, 664,485.24 and 143,400.68 is: 215,135.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,920.08 : 664,485.24 = 143,400.68 : x
  2. Step 2: Convert to fraction form
    442,920.08/664,485.24 = 143,400.68/x
  3. Step 3: Cross multiply
    442,920.08x = 664,485.24 × 143,400.68
  4. Step 4: Simplify right side
    442,920.08x = 95,287,635,265.96
  5. Step 5: Solve for x
    x = 95,287,635,265.96/442,920.08
  6. Step 6: Final answer
    x = 215,135.05

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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.