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Finding the Fourth Proportional to 243,465.62, 335,976.26 and 136,036.46

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Solution

The fourth proportional to 243,465.62, 335,976.26 and 136,036.46 is: 187,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,465.62 : 335,976.26 = 136,036.46 : x
  2. Step 2: Convert to fraction form
    243,465.62/335,976.26 = 136,036.46/x
  3. Step 3: Cross multiply
    243,465.62x = 335,976.26 × 136,036.46
  4. Step 4: Simplify right side
    243,465.62x = 45,705,021,214.20
  5. Step 5: Solve for x
    x = 45,705,021,214.20/243,465.62
  6. Step 6: Final answer
    x = 187,726.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.