Home / 257,338.30-385,875.78-107,537.68

Finding the Fourth Proportional to 257,338.30, 385,875.78 and 107,537.68

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Solution

The fourth proportional to 257,338.30, 385,875.78 and 107,537.68 is: 161,251.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,338.30 : 385,875.78 = 107,537.68 : x
  2. Step 2: Convert to fraction form
    257,338.30/385,875.78 = 107,537.68/x
  3. Step 3: Cross multiply
    257,338.30x = 385,875.78 × 107,537.68
  4. Step 4: Simplify right side
    257,338.30x = 41,496,186,149.39
  5. Step 5: Solve for x
    x = 41,496,186,149.39/257,338.30
  6. Step 6: Final answer
    x = 161,251.50

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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.