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Finding the Fourth Proportional to 252,009.58, 378,015 and 172,883.92

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Solution

The fourth proportional to 252,009.58, 378,015 and 172,883.92 is: 259,326.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,009.58 : 378,015 = 172,883.92 : x
  2. Step 2: Convert to fraction form
    252,009.58/378,015 = 172,883.92/x
  3. Step 3: Cross multiply
    252,009.58x = 378,015 × 172,883.92
  4. Step 4: Simplify right side
    252,009.58x = 65,352,715,018.80
  5. Step 5: Solve for x
    x = 65,352,715,018.80/252,009.58
  6. Step 6: Final answer
    x = 259,326.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.