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Finding the Fourth Proportional to 252,768, 348,921.60 and 172,276.86

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Solution

The fourth proportional to 252,768, 348,921.60 and 172,276.86 is: 237,811.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,768 : 348,921.60 = 172,276.86 : x
  2. Step 2: Convert to fraction form
    252,768/348,921.60 = 172,276.86/x
  3. Step 3: Cross multiply
    252,768x = 348,921.60 × 172,276.86
  4. Step 4: Simplify right side
    252,768x = 60,111,117,634.18
  5. Step 5: Solve for x
    x = 60,111,117,634.18/252,768
  6. Step 6: Final answer
    x = 237,811.42

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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.