Home / 261,268.08-391,237.38-172,251.51

Finding the Fourth Proportional to 261,268.08, 391,237.38 and 172,251.51

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Solution

The fourth proportional to 261,268.08, 391,237.38 and 172,251.51 is: 257,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,268.08 : 391,237.38 = 172,251.51 : x
  2. Step 2: Convert to fraction form
    261,268.08/391,237.38 = 172,251.51/x
  3. Step 3: Cross multiply
    261,268.08x = 391,237.38 × 172,251.51
  4. Step 4: Simplify right side
    261,268.08x = 67,391,229,473.44
  5. Step 5: Solve for x
    x = 67,391,229,473.44/261,268.08
  6. Step 6: Final answer
    x = 257,939.01

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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.