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Finding the Fourth Proportional to 351,301, 526,959.42 and 126,679.72

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Solution

The fourth proportional to 351,301, 526,959.42 and 126,679.72 is: 190,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,301 : 526,959.42 = 126,679.72 : x
  2. Step 2: Convert to fraction form
    351,301/526,959.42 = 126,679.72/x
  3. Step 3: Cross multiply
    351,301x = 526,959.42 × 126,679.72
  4. Step 4: Simplify right side
    351,301x = 66,755,071,776.96
  5. Step 5: Solve for x
    x = 66,755,071,776.96/351,301
  6. Step 6: Final answer
    x = 190,022.44

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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.