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Finding the Fourth Proportional to 318,399.56, 439,377.54 and 175,150.52

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Solution

The fourth proportional to 318,399.56, 439,377.54 and 175,150.52 is: 241,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,399.56 : 439,377.54 = 175,150.52 : x
  2. Step 2: Convert to fraction form
    318,399.56/439,377.54 = 175,150.52/x
  3. Step 3: Cross multiply
    318,399.56x = 439,377.54 × 175,150.52
  4. Step 4: Simplify right side
    318,399.56x = 76,957,204,607.32
  5. Step 5: Solve for x
    x = 76,957,204,607.32/318,399.56
  6. Step 6: Final answer
    x = 241,700.10

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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.