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Finding the Fourth Proportional to 254,042.66, 380,789.80 and 111,761.30

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Solution

The fourth proportional to 254,042.66, 380,789.80 and 111,761.30 is: 167,521.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,042.66 : 380,789.80 = 111,761.30 : x
  2. Step 2: Convert to fraction form
    254,042.66/380,789.80 = 111,761.30/x
  3. Step 3: Cross multiply
    254,042.66x = 380,789.80 × 111,761.30
  4. Step 4: Simplify right side
    254,042.66x = 42,557,563,074.74
  5. Step 5: Solve for x
    x = 42,557,563,074.74/254,042.66
  6. Step 6: Final answer
    x = 167,521.33

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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.