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Finding the Fourth Proportional to 318,842.88, 440,016.75 and 182,915.16

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Solution

The fourth proportional to 318,842.88, 440,016.75 and 182,915.16 is: 252,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,842.88 : 440,016.75 = 182,915.16 : x
  2. Step 2: Convert to fraction form
    318,842.88/440,016.75 = 182,915.16/x
  3. Step 3: Cross multiply
    318,842.88x = 440,016.75 × 182,915.16
  4. Step 4: Simplify right side
    318,842.88x = 80,485,734,228.93
  5. Step 5: Solve for x
    x = 80,485,734,228.93/318,842.88
  6. Step 6: Final answer
    x = 252,430.71

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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.