Home / 215,625.28-297,589.20-130,742.08

Finding the Fourth Proportional to 215,625.28, 297,589.20 and 130,742.08

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Solution

The fourth proportional to 215,625.28, 297,589.20 and 130,742.08 is: 180,440.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,625.28 : 297,589.20 = 130,742.08 : x
  2. Step 2: Convert to fraction form
    215,625.28/297,589.20 = 130,742.08/x
  3. Step 3: Cross multiply
    215,625.28x = 297,589.20 × 130,742.08
  4. Step 4: Simplify right side
    215,625.28x = 38,907,430,993.54
  5. Step 5: Solve for x
    x = 38,907,430,993.54/215,625.28
  6. Step 6: Final answer
    x = 180,440.03

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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.