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Finding the Fourth Proportional to 250,518, 345,714.84 and 137,341.56

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Solution

The fourth proportional to 250,518, 345,714.84 and 137,341.56 is: 189,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,518 : 345,714.84 = 137,341.56 : x
  2. Step 2: Convert to fraction form
    250,518/345,714.84 = 137,341.56/x
  3. Step 3: Cross multiply
    250,518x = 345,714.84 × 137,341.56
  4. Step 4: Simplify right side
    250,518x = 47,481,015,440.75
  5. Step 5: Solve for x
    x = 47,481,015,440.75/250,518
  6. Step 6: Final answer
    x = 189,531.35

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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.