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Finding the Fourth Proportional to 272,080.58, 408,259.11 and 122,290.70

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Solution

The fourth proportional to 272,080.58, 408,259.11 and 122,290.70 is: 183,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,080.58 : 408,259.11 = 122,290.70 : x
  2. Step 2: Convert to fraction form
    272,080.58/408,259.11 = 122,290.70/x
  3. Step 3: Cross multiply
    272,080.58x = 408,259.11 × 122,290.70
  4. Step 4: Simplify right side
    272,080.58x = 49,926,292,343.28
  5. Step 5: Solve for x
    x = 49,926,292,343.28/272,080.58
  6. Step 6: Final answer
    x = 183,498.18

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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.