Home / 438,494.39-655,841.19-258,150.05

Finding the Fourth Proportional to 438,494.39, 655,841.19 and 258,150.05

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Solution

The fourth proportional to 438,494.39, 655,841.19 and 258,150.05 is: 386,106.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,494.39 : 655,841.19 = 258,150.05 : x
  2. Step 2: Convert to fraction form
    438,494.39/655,841.19 = 258,150.05/x
  3. Step 3: Cross multiply
    438,494.39x = 655,841.19 × 258,150.05
  4. Step 4: Simplify right side
    438,494.39x = 169,305,435,990.56
  5. Step 5: Solve for x
    x = 169,305,435,990.56/438,494.39
  6. Step 6: Final answer
    x = 386,106.28

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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.