Home / 410,736.32-616,126.40-130,275.20

Finding the Fourth Proportional to 410,736.32, 616,126.40 and 130,275.20

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Solution

The fourth proportional to 410,736.32, 616,126.40 and 130,275.20 is: 195,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,736.32 : 616,126.40 = 130,275.20 : x
  2. Step 2: Convert to fraction form
    410,736.32/616,126.40 = 130,275.20/x
  3. Step 3: Cross multiply
    410,736.32x = 616,126.40 × 130,275.20
  4. Step 4: Simplify right side
    410,736.32x = 80,265,989,985.28
  5. Step 5: Solve for x
    x = 80,265,989,985.28/410,736.32
  6. Step 6: Final answer
    x = 195,419.75

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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.