Home / 410,629.32-615,965.82-130,168.52

Finding the Fourth Proportional to 410,629.32, 615,965.82 and 130,168.52

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Solution

The fourth proportional to 410,629.32, 615,965.82 and 130,168.52 is: 195,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,629.32 : 615,965.82 = 130,168.52 : x
  2. Step 2: Convert to fraction form
    410,629.32/615,965.82 = 130,168.52/x
  3. Step 3: Cross multiply
    410,629.32x = 615,965.82 × 130,168.52
  4. Step 4: Simplify right side
    410,629.32x = 80,179,359,159.99
  5. Step 5: Solve for x
    x = 80,179,359,159.99/410,629.32
  6. Step 6: Final answer
    x = 195,259.70

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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.