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Finding the Fourth Proportional to 252,662.78, 348,675.28 and 137,941.58

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Solution

The fourth proportional to 252,662.78, 348,675.28 and 137,941.58 is: 190,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,662.78 : 348,675.28 = 137,941.58 : x
  2. Step 2: Convert to fraction form
    252,662.78/348,675.28 = 137,941.58/x
  3. Step 3: Cross multiply
    252,662.78x = 348,675.28 × 137,941.58
  4. Step 4: Simplify right side
    252,662.78x = 48,096,819,030.14
  5. Step 5: Solve for x
    x = 48,096,819,030.14/252,662.78
  6. Step 6: Final answer
    x = 190,359.73

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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.