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Finding the Fourth Proportional to 154,404.20, 231,619.10 and 49,220.20

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Solution

The fourth proportional to 154,404.20, 231,619.10 and 49,220.20 is: 73,834.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,404.20 : 231,619.10 = 49,220.20 : x
  2. Step 2: Convert to fraction form
    154,404.20/231,619.10 = 49,220.20/x
  3. Step 3: Cross multiply
    154,404.20x = 231,619.10 × 49,220.20
  4. Step 4: Simplify right side
    154,404.20x = 11,400,338,425.82
  5. Step 5: Solve for x
    x = 11,400,338,425.82/154,404.20
  6. Step 6: Final answer
    x = 73,834.38

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1.5x scale

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.