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Finding the Fourth Proportional to 243,186.16, 364,765.47 and 65,679.79

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Solution

The fourth proportional to 243,186.16, 364,765.47 and 65,679.79 is: 98,515.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,186.16 : 364,765.47 = 65,679.79 : x
  2. Step 2: Convert to fraction form
    243,186.16/364,765.47 = 65,679.79/x
  3. Step 3: Cross multiply
    243,186.16x = 364,765.47 × 65,679.79
  4. Step 4: Simplify right side
    243,186.16x = 23,957,719,468.85
  5. Step 5: Solve for x
    x = 23,957,719,468.85/243,186.16
  6. Step 6: Final answer
    x = 98,515.97

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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.