Home / 442,935.90-664,501.05-143,430.30

Finding the Fourth Proportional to 442,935.90, 664,501.05 and 143,430.30

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Solution

The fourth proportional to 442,935.90, 664,501.05 and 143,430.30 is: 215,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,935.90 : 664,501.05 = 143,430.30 : x
  2. Step 2: Convert to fraction form
    442,935.90/664,501.05 = 143,430.30/x
  3. Step 3: Cross multiply
    442,935.90x = 664,501.05 × 143,430.30
  4. Step 4: Simplify right side
    442,935.90x = 95,309,584,951.82
  5. Step 5: Solve for x
    x = 95,309,584,951.82/442,935.90
  6. Step 6: Final answer
    x = 215,176.93

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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.