Home / 318,780.03-439,916.39-175,539.72

Finding the Fourth Proportional to 318,780.03, 439,916.39 and 175,539.72

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Solution

The fourth proportional to 318,780.03, 439,916.39 and 175,539.72 is: 242,244.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,780.03 : 439,916.39 = 175,539.72 : x
  2. Step 2: Convert to fraction form
    318,780.03/439,916.39 = 175,539.72/x
  3. Step 3: Cross multiply
    318,780.03x = 439,916.39 × 175,539.72
  4. Step 4: Simplify right side
    318,780.03x = 77,222,796,846.73
  5. Step 5: Solve for x
    x = 77,222,796,846.73/318,780.03
  6. Step 6: Final answer
    x = 242,244.78

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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.