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Finding the Fourth Proportional to 318,198.96, 477,484.56 and 118,657.20

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Solution

The fourth proportional to 318,198.96, 477,484.56 and 118,657.20 is: 178,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,198.96 : 477,484.56 = 118,657.20 : x
  2. Step 2: Convert to fraction form
    318,198.96/477,484.56 = 118,657.20/x
  3. Step 3: Cross multiply
    318,198.96x = 477,484.56 × 118,657.20
  4. Step 4: Simplify right side
    318,198.96x = 56,656,980,932.83
  5. Step 5: Solve for x
    x = 56,656,980,932.83/318,198.96
  6. Step 6: Final answer
    x = 178,055.20

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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.