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Finding the Fourth Proportional to 251,999.76, 378,002.46 and 107,886.18

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Solution

The fourth proportional to 251,999.76, 378,002.46 and 107,886.18 is: 161,830.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,999.76 : 378,002.46 = 107,886.18 : x
  2. Step 2: Convert to fraction form
    251,999.76/378,002.46 = 107,886.18/x
  3. Step 3: Cross multiply
    251,999.76x = 378,002.46 × 107,886.18
  4. Step 4: Simplify right side
    251,999.76x = 40,781,241,440.00
  5. Step 5: Solve for x
    x = 40,781,241,440.00/251,999.76
  6. Step 6: Final answer
    x = 161,830.48

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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.