Home / 257,336.28-385,872.78-107,535.68

Finding the Fourth Proportional to 257,336.28, 385,872.78 and 107,535.68

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Solution

The fourth proportional to 257,336.28, 385,872.78 and 107,535.68 is: 161,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,336.28 : 385,872.78 = 107,535.68 : x
  2. Step 2: Convert to fraction form
    257,336.28/385,872.78 = 107,535.68/x
  3. Step 3: Cross multiply
    257,336.28x = 385,872.78 × 107,535.68
  4. Step 4: Simplify right side
    257,336.28x = 41,495,091,790.79
  5. Step 5: Solve for x
    x = 41,495,091,790.79/257,336.28
  6. Step 6: Final answer
    x = 161,248.51

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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.