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Finding the Fourth Proportional to 252,780.60, 348,839.61 and 143,879.63

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Solution

The fourth proportional to 252,780.60, 348,839.61 and 143,879.63 is: 198,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,780.60 : 348,839.61 = 143,879.63 : x
  2. Step 2: Convert to fraction form
    252,780.60/348,839.61 = 143,879.63/x
  3. Step 3: Cross multiply
    252,780.60x = 348,839.61 × 143,879.63
  4. Step 4: Simplify right side
    252,780.60x = 50,190,912,271.95
  5. Step 5: Solve for x
    x = 50,190,912,271.95/252,780.60
  6. Step 6: Final answer
    x = 198,555.24

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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.