Home / 257,152.30-385,790.04-107,309.24

Finding the Fourth Proportional to 257,152.30, 385,790.04 and 107,309.24

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Solution

The fourth proportional to 257,152.30, 385,790.04 and 107,309.24 is: 160,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,152.30 : 385,790.04 = 107,309.24 : x
  2. Step 2: Convert to fraction form
    257,152.30/385,790.04 = 107,309.24/x
  3. Step 3: Cross multiply
    257,152.30x = 385,790.04 × 107,309.24
  4. Step 4: Simplify right side
    257,152.30x = 41,398,835,991.97
  5. Step 5: Solve for x
    x = 41,398,835,991.97/257,152.30
  6. Step 6: Final answer
    x = 160,989.56

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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.