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Finding the Fourth Proportional to 318,424.96, 477,670.85 and 158,540.55

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Solution

The fourth proportional to 318,424.96, 477,670.85 and 158,540.55 is: 237,827.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,424.96 : 477,670.85 = 158,540.55 : x
  2. Step 2: Convert to fraction form
    318,424.96/477,670.85 = 158,540.55/x
  3. Step 3: Cross multiply
    318,424.96x = 477,670.85 × 158,540.55
  4. Step 4: Simplify right side
    318,424.96x = 75,730,199,277.97
  5. Step 5: Solve for x
    x = 75,730,199,277.97/318,424.96
  6. Step 6: Final answer
    x = 237,827.46

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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.