Home / 318,781.46-439,918.38-175,541.16

Finding the Fourth Proportional to 318,781.46, 439,918.38 and 175,541.16

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Solution

The fourth proportional to 318,781.46, 439,918.38 and 175,541.16 is: 242,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,781.46 : 439,918.38 = 175,541.16 : x
  2. Step 2: Convert to fraction form
    318,781.46/439,918.38 = 175,541.16/x
  3. Step 3: Cross multiply
    318,781.46x = 439,918.38 × 175,541.16
  4. Step 4: Simplify right side
    318,781.46x = 77,223,782,730.52
  5. Step 5: Solve for x
    x = 77,223,782,730.52/318,781.46
  6. Step 6: Final answer
    x = 242,246.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.