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Finding the Fourth Proportional to 318,307.88, 477,387.77 and 93,608.21

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Solution

The fourth proportional to 318,307.88, 477,387.77 and 93,608.21 is: 140,390.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,307.88 : 477,387.77 = 93,608.21 : x
  2. Step 2: Convert to fraction form
    318,307.88/477,387.77 = 93,608.21/x
  3. Step 3: Cross multiply
    318,307.88x = 477,387.77 × 93,608.21
  4. Step 4: Simplify right side
    318,307.88x = 44,687,414,157.55
  5. Step 5: Solve for x
    x = 44,687,414,157.55/318,307.88
  6. Step 6: Final answer
    x = 140,390.54

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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.