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Finding the Fourth Proportional to 250,000.80, 344,992.60 and 136,821.12

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Solution

The fourth proportional to 250,000.80, 344,992.60 and 136,821.12 is: 188,808.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,000.80 : 344,992.60 = 136,821.12 : x
  2. Step 2: Convert to fraction form
    250,000.80/344,992.60 = 136,821.12/x
  3. Step 3: Cross multiply
    250,000.80x = 344,992.60 × 136,821.12
  4. Step 4: Simplify right side
    250,000.80x = 47,202,273,923.71
  5. Step 5: Solve for x
    x = 47,202,273,923.71/250,000.80
  6. Step 6: Final answer
    x = 188,808.49

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1.5x scale

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.