Home / 318,781.03-439,917.76-175,540.72

Finding the Fourth Proportional to 318,781.03, 439,917.76 and 175,540.72

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Solution

The fourth proportional to 318,781.03, 439,917.76 and 175,540.72 is: 242,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,781.03 : 439,917.76 = 175,540.72 : x
  2. Step 2: Convert to fraction form
    318,781.03/439,917.76 = 175,540.72/x
  3. Step 3: Cross multiply
    318,781.03x = 439,917.76 × 175,540.72
  4. Step 4: Simplify right side
    318,781.03x = 77,223,480,331.19
  5. Step 5: Solve for x
    x = 77,223,480,331.19/318,781.03
  6. Step 6: Final answer
    x = 242,246.16

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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.