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Finding the Fourth Proportional to 252,590.88, 348,570.09 and 137,865.72

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Solution

The fourth proportional to 252,590.88, 348,570.09 and 137,865.72 is: 190,251.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,590.88 : 348,570.09 = 137,865.72 : x
  2. Step 2: Convert to fraction form
    252,590.88/348,570.09 = 137,865.72/x
  3. Step 3: Cross multiply
    252,590.88x = 348,570.09 × 137,865.72
  4. Step 4: Simplify right side
    252,590.88x = 48,055,866,428.31
  5. Step 5: Solve for x
    x = 48,055,866,428.31/252,590.88
  6. Step 6: Final answer
    x = 190,251.79

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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.