Home / 442,936.30-664,510.28-143,417.21

Finding the Fourth Proportional to 442,936.30, 664,510.28 and 143,417.21

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Solution

The fourth proportional to 442,936.30, 664,510.28 and 143,417.21 is: 215,160.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,936.30 : 664,510.28 = 143,417.21 : x
  2. Step 2: Convert to fraction form
    442,936.30/664,510.28 = 143,417.21/x
  3. Step 3: Cross multiply
    442,936.30x = 664,510.28 × 143,417.21
  4. Step 4: Simplify right side
    442,936.30x = 95,302,206,513.55
  5. Step 5: Solve for x
    x = 95,302,206,513.55/442,936.30
  6. Step 6: Final answer
    x = 215,160.07

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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.