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Finding the Fourth Proportional to 252,276, 348,143.58 and 137,553.72

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Solution

The fourth proportional to 252,276, 348,143.58 and 137,553.72 is: 189,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,276 : 348,143.58 = 137,553.72 : x
  2. Step 2: Convert to fraction form
    252,276/348,143.58 = 137,553.72/x
  3. Step 3: Cross multiply
    252,276x = 348,143.58 × 137,553.72
  4. Step 4: Simplify right side
    252,276x = 47,888,444,523.12
  5. Step 5: Solve for x
    x = 47,888,444,523.12/252,276
  6. Step 6: Final answer
    x = 189,825.61

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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.