Home / 354,098.08-531,145.68-143,734.24

Finding the Fourth Proportional to 354,098.08, 531,145.68 and 143,734.24

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Solution

The fourth proportional to 354,098.08, 531,145.68 and 143,734.24 is: 215,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,098.08 : 531,145.68 = 143,734.24 : x
  2. Step 2: Convert to fraction form
    354,098.08/531,145.68 = 143,734.24/x
  3. Step 3: Cross multiply
    354,098.08x = 531,145.68 × 143,734.24
  4. Step 4: Simplify right side
    354,098.08x = 76,343,820,644.08
  5. Step 5: Solve for x
    x = 76,343,820,644.08/354,098.08
  6. Step 6: Final answer
    x = 215,600.78

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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.