Home / 345,451.39-518,177.09-134,941.71

Finding the Fourth Proportional to 345,451.39, 518,177.09 and 134,941.71

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Solution

The fourth proportional to 345,451.39, 518,177.09 and 134,941.71 is: 202,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,451.39 : 518,177.09 = 134,941.71 : x
  2. Step 2: Convert to fraction form
    345,451.39/518,177.09 = 134,941.71/x
  3. Step 3: Cross multiply
    345,451.39x = 518,177.09 × 134,941.71
  4. Step 4: Simplify right side
    345,451.39x = 69,923,702,607.42
  5. Step 5: Solve for x
    x = 69,923,702,607.42/345,451.39
  6. Step 6: Final answer
    x = 202,412.57

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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.