Home / 257,249.57-385,917.74-88,724.81

Finding the Fourth Proportional to 257,249.57, 385,917.74 and 88,724.81

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Solution

The fourth proportional to 257,249.57, 385,917.74 and 88,724.81 is: 133,102.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,249.57 : 385,917.74 = 88,724.81 : x
  2. Step 2: Convert to fraction form
    257,249.57/385,917.74 = 88,724.81/x
  3. Step 3: Cross multiply
    257,249.57x = 385,917.74 × 88,724.81
  4. Step 4: Simplify right side
    257,249.57x = 34,240,479,343.74
  5. Step 5: Solve for x
    x = 34,240,479,343.74/257,249.57
  6. Step 6: Final answer
    x = 133,102.19

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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.