Home / 274,013.76-378,112.27-172,006.61

Finding the Fourth Proportional to 274,013.76, 378,112.27 and 172,006.61

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Solution

The fourth proportional to 274,013.76, 378,112.27 and 172,006.61 is: 237,352.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,013.76 : 378,112.27 = 172,006.61 : x
  2. Step 2: Convert to fraction form
    274,013.76/378,112.27 = 172,006.61/x
  3. Step 3: Cross multiply
    274,013.76x = 378,112.27 × 172,006.61
  4. Step 4: Simplify right side
    274,013.76x = 65,037,808,902.07
  5. Step 5: Solve for x
    x = 65,037,808,902.07/274,013.76
  6. Step 6: Final answer
    x = 237,352.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.