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Finding the Fourth Proportional to 243,882.62, 336,525.81 and 136,440.98

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Solution

The fourth proportional to 243,882.62, 336,525.81 and 136,440.98 is: 188,270.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,882.62 : 336,525.81 = 136,440.98 : x
  2. Step 2: Convert to fraction form
    243,882.62/336,525.81 = 136,440.98/x
  3. Step 3: Cross multiply
    243,882.62x = 336,525.81 × 136,440.98
  4. Step 4: Simplify right side
    243,882.62x = 45,915,911,311.69
  5. Step 5: Solve for x
    x = 45,915,911,311.69/243,882.62
  6. Step 6: Final answer
    x = 188,270.53

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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.