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Finding the Fourth Proportional to 267,860.58, 401,779.32 and 80,866.50

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Solution

The fourth proportional to 267,860.58, 401,779.32 and 80,866.50 is: 121,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,860.58 : 401,779.32 = 80,866.50 : x
  2. Step 2: Convert to fraction form
    267,860.58/401,779.32 = 80,866.50/x
  3. Step 3: Cross multiply
    267,860.58x = 401,779.32 × 80,866.50
  4. Step 4: Simplify right side
    267,860.58x = 32,490,487,380.78
  5. Step 5: Solve for x
    x = 32,490,487,380.78/267,860.58
  6. Step 6: Final answer
    x = 121,296.26

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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.