Home / 318,788.16-439,930.56-175,548.78

Finding the Fourth Proportional to 318,788.16, 439,930.56 and 175,548.78

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Solution

The fourth proportional to 318,788.16, 439,930.56 and 175,548.78 is: 242,258.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,788.16 : 439,930.56 = 175,548.78 : x
  2. Step 2: Convert to fraction form
    318,788.16/439,930.56 = 175,548.78/x
  3. Step 3: Cross multiply
    318,788.16x = 439,930.56 × 175,548.78
  4. Step 4: Simplify right side
    318,788.16x = 77,229,273,092.72
  5. Step 5: Solve for x
    x = 77,229,273,092.72/318,788.16
  6. Step 6: Final answer
    x = 242,258.91

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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.