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Finding the Fourth Proportional to 317,932.80, 477,676.80 and 239,200.80

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Solution

The fourth proportional to 317,932.80, 477,676.80 and 239,200.80 is: 359,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,932.80 : 477,676.80 = 239,200.80 : x
  2. Step 2: Convert to fraction form
    317,932.80/477,676.80 = 239,200.80/x
  3. Step 3: Cross multiply
    317,932.80x = 477,676.80 × 239,200.80
  4. Step 4: Simplify right side
    317,932.80x = 114,260,672,701.44
  5. Step 5: Solve for x
    x = 114,260,672,701.44/317,932.80
  6. Step 6: Final answer
    x = 359,386.24

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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.