Home / 272,080.64-408,259.20-122,290.76

Finding the Fourth Proportional to 272,080.64, 408,259.20 and 122,290.76

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Solution

The fourth proportional to 272,080.64, 408,259.20 and 122,290.76 is: 183,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,080.64 : 408,259.20 = 122,290.76 : x
  2. Step 2: Convert to fraction form
    272,080.64/408,259.20 = 122,290.76/x
  3. Step 3: Cross multiply
    272,080.64x = 408,259.20 × 122,290.76
  4. Step 4: Simplify right side
    272,080.64x = 49,926,329,324.23
  5. Step 5: Solve for x
    x = 49,926,329,324.23/272,080.64
  6. Step 6: Final answer
    x = 183,498.28

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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.