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Finding the Fourth Proportional to 318,600.73, 439,665.53 and 175,357.70

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Solution

The fourth proportional to 318,600.73, 439,665.53 and 175,357.70 is: 241,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,600.73 : 439,665.53 = 175,357.70 : x
  2. Step 2: Convert to fraction form
    318,600.73/439,665.53 = 175,357.70/x
  3. Step 3: Cross multiply
    318,600.73x = 439,665.53 × 175,357.70
  4. Step 4: Simplify right side
    318,600.73x = 77,098,736,110.08
  5. Step 5: Solve for x
    x = 77,098,736,110.08/318,600.73
  6. Step 6: Final answer
    x = 241,991.71

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1.5x scale

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.