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Finding the Fourth Proportional to 318,119.75, 477,167.18 and 107,757.69

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Solution

The fourth proportional to 318,119.75, 477,167.18 and 107,757.69 is: 161,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,119.75 : 477,167.18 = 107,757.69 : x
  2. Step 2: Convert to fraction form
    318,119.75/477,167.18 = 107,757.69/x
  3. Step 3: Cross multiply
    318,119.75x = 477,167.18 × 107,757.69
  4. Step 4: Simplify right side
    318,119.75x = 51,418,432,521.83
  5. Step 5: Solve for x
    x = 51,418,432,521.83/318,119.75
  6. Step 6: Final answer
    x = 161,632.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.