Home / 257,155.20-385,434.72-152,062.56

Finding the Fourth Proportional to 257,155.20, 385,434.72 and 152,062.56

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Solution

The fourth proportional to 257,155.20, 385,434.72 and 152,062.56 is: 227,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,155.20 : 385,434.72 = 152,062.56 : x
  2. Step 2: Convert to fraction form
    257,155.20/385,434.72 = 152,062.56/x
  3. Step 3: Cross multiply
    257,155.20x = 385,434.72 × 152,062.56
  4. Step 4: Simplify right side
    257,155.20x = 58,610,190,236.08
  5. Step 5: Solve for x
    x = 58,610,190,236.08/257,155.20
  6. Step 6: Final answer
    x = 227,917.58

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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.