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Finding the Fourth Proportional to 178,778.80, 267,779.40 and 108,535.60

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Solution

The fourth proportional to 178,778.80, 267,779.40 and 108,535.60 is: 162,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,778.80 : 267,779.40 = 108,535.60 : x
  2. Step 2: Convert to fraction form
    178,778.80/267,779.40 = 108,535.60/x
  3. Step 3: Cross multiply
    178,778.80x = 267,779.40 × 108,535.60
  4. Step 4: Simplify right side
    178,778.80x = 29,063,597,846.64
  5. Step 5: Solve for x
    x = 29,063,597,846.64/178,778.80
  6. Step 6: Final answer
    x = 162,567.36

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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.