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Finding the Fourth Proportional to 243,080.19, 364,620.28 and 65,587.20

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Solution

The fourth proportional to 243,080.19, 364,620.28 and 65,587.20 is: 98,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,080.19 : 364,620.28 = 65,587.20 : x
  2. Step 2: Convert to fraction form
    243,080.19/364,620.28 = 65,587.20/x
  3. Step 3: Cross multiply
    243,080.19x = 364,620.28 × 65,587.20
  4. Step 4: Simplify right side
    243,080.19x = 23,914,422,425.08
  5. Step 5: Solve for x
    x = 23,914,422,425.08/243,080.19
  6. Step 6: Final answer
    x = 98,380.80

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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.