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Finding the Fourth Proportional to 243,291.60, 364,825.62 and 135,151.74

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Solution

The fourth proportional to 243,291.60, 364,825.62 and 135,151.74 is: 202,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,291.60 : 364,825.62 = 135,151.74 : x
  2. Step 2: Convert to fraction form
    243,291.60/364,825.62 = 135,151.74/x
  3. Step 3: Cross multiply
    243,291.60x = 364,825.62 × 135,151.74
  4. Step 4: Simplify right side
    243,291.60x = 49,306,817,339.58
  5. Step 5: Solve for x
    x = 49,306,817,339.58/243,291.60
  6. Step 6: Final answer
    x = 202,665.51

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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.