Home / 442,985.36-664,543.24-143,366.36

Finding the Fourth Proportional to 442,985.36, 664,543.24 and 143,366.36

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Solution

The fourth proportional to 442,985.36, 664,543.24 and 143,366.36 is: 215,070.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,985.36 : 664,543.24 = 143,366.36 : x
  2. Step 2: Convert to fraction form
    442,985.36/664,543.24 = 143,366.36/x
  3. Step 3: Cross multiply
    442,985.36x = 664,543.24 × 143,366.36
  4. Step 4: Simplify right side
    442,985.36x = 95,273,141,700.27
  5. Step 5: Solve for x
    x = 95,273,141,700.27/442,985.36
  6. Step 6: Final answer
    x = 215,070.64

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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.