Home / 442,935.40-664,500.30-143,429.80

Finding the Fourth Proportional to 442,935.40, 664,500.30 and 143,429.80

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Solution

The fourth proportional to 442,935.40, 664,500.30 and 143,429.80 is: 215,176.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,935.40 : 664,500.30 = 143,429.80 : x
  2. Step 2: Convert to fraction form
    442,935.40/664,500.30 = 143,429.80/x
  3. Step 3: Cross multiply
    442,935.40x = 664,500.30 × 143,429.80
  4. Step 4: Simplify right side
    442,935.40x = 95,309,145,128.94
  5. Step 5: Solve for x
    x = 95,309,145,128.94/442,935.40
  6. Step 6: Final answer
    x = 215,176.17

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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.