Home / 259,476.10-389,214.15-147,112.90

Finding the Fourth Proportional to 259,476.10, 389,214.15 and 147,112.90

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Solution

The fourth proportional to 259,476.10, 389,214.15 and 147,112.90 is: 220,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,476.10 : 389,214.15 = 147,112.90 : x
  2. Step 2: Convert to fraction form
    259,476.10/389,214.15 = 147,112.90/x
  3. Step 3: Cross multiply
    259,476.10x = 389,214.15 × 147,112.90
  4. Step 4: Simplify right side
    259,476.10x = 57,258,422,327.54
  5. Step 5: Solve for x
    x = 57,258,422,327.54/259,476.10
  6. Step 6: Final answer
    x = 220,669.35

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Similar ratio
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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.