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Finding the Fourth Proportional to 243,527.90, 336,067.40 and 136,097.87

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Solution

The fourth proportional to 243,527.90, 336,067.40 and 136,097.87 is: 187,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,527.90 : 336,067.40 = 136,097.87 : x
  2. Step 2: Convert to fraction form
    243,527.90/336,067.40 = 136,097.87/x
  3. Step 3: Cross multiply
    243,527.90x = 336,067.40 × 136,097.87
  4. Step 4: Simplify right side
    243,527.90x = 45,738,058,496.85
  5. Step 5: Solve for x
    x = 45,738,058,496.85/243,527.90
  6. Step 6: Final answer
    x = 187,814.45

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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.