Home / 257,152.10-385,789.74-107,309.04

Finding the Fourth Proportional to 257,152.10, 385,789.74 and 107,309.04

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Solution

The fourth proportional to 257,152.10, 385,789.74 and 107,309.04 is: 160,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,152.10 : 385,789.74 = 107,309.04 : x
  2. Step 2: Convert to fraction form
    257,152.10/385,789.74 = 107,309.04/x
  3. Step 3: Cross multiply
    257,152.10x = 385,789.74 × 107,309.04
  4. Step 4: Simplify right side
    257,152.10x = 41,398,726,641.25
  5. Step 5: Solve for x
    x = 41,398,726,641.25/257,152.10
  6. Step 6: Final answer
    x = 160,989.26

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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.