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Finding the Fourth Proportional to 318,481.56, 439,493.58 and 175,228.20

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Solution

The fourth proportional to 318,481.56, 439,493.58 and 175,228.20 is: 241,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,481.56 : 439,493.58 = 175,228.20 : x
  2. Step 2: Convert to fraction form
    318,481.56/439,493.58 = 175,228.20/x
  3. Step 3: Cross multiply
    318,481.56x = 439,493.58 × 175,228.20
  4. Step 4: Simplify right side
    318,481.56x = 77,011,668,934.96
  5. Step 5: Solve for x
    x = 77,011,668,934.96/318,481.56
  6. Step 6: Final answer
    x = 241,808.88

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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.