Home / 424,736.77-636,662.17-172,191.55

Finding the Fourth Proportional to 424,736.77, 636,662.17 and 172,191.55

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Solution

The fourth proportional to 424,736.77, 636,662.17 and 172,191.55 is: 258,107.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,736.77 : 636,662.17 = 172,191.55 : x
  2. Step 2: Convert to fraction form
    424,736.77/636,662.17 = 172,191.55/x
  3. Step 3: Cross multiply
    424,736.77x = 636,662.17 × 172,191.55
  4. Step 4: Simplify right side
    424,736.77x = 109,627,845,878.66
  5. Step 5: Solve for x
    x = 109,627,845,878.66/424,736.77
  6. Step 6: Final answer
    x = 258,107.74

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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.