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Finding the Fourth Proportional to 155,786.80, 233,680.20 and 154,404.40

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Solution

The fourth proportional to 155,786.80, 233,680.20 and 154,404.40 is: 231,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,786.80 : 233,680.20 = 154,404.40 : x
  2. Step 2: Convert to fraction form
    155,786.80/233,680.20 = 154,404.40/x
  3. Step 3: Cross multiply
    155,786.80x = 233,680.20 × 154,404.40
  4. Step 4: Simplify right side
    155,786.80x = 36,081,251,072.88
  5. Step 5: Solve for x
    x = 36,081,251,072.88/155,786.80
  6. Step 6: Final answer
    x = 231,606.60

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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.