Home / 439,295.12-658,692.88-172,911.20

Finding the Fourth Proportional to 439,295.12, 658,692.88 and 172,911.20

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Solution

The fourth proportional to 439,295.12, 658,692.88 and 172,911.20 is: 259,268.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,295.12 : 658,692.88 = 172,911.20 : x
  2. Step 2: Convert to fraction form
    439,295.12/658,692.88 = 172,911.20/x
  3. Step 3: Cross multiply
    439,295.12x = 658,692.88 × 172,911.20
  4. Step 4: Simplify right side
    439,295.12x = 113,895,376,312.26
  5. Step 5: Solve for x
    x = 113,895,376,312.26/439,295.12
  6. Step 6: Final answer
    x = 259,268.48

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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.