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Finding the Fourth Proportional to 290,873.43, 435,864.85 and 195,751.69

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Solution

The fourth proportional to 290,873.43, 435,864.85 and 195,751.69 is: 293,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,873.43 : 435,864.85 = 195,751.69 : x
  2. Step 2: Convert to fraction form
    290,873.43/435,864.85 = 195,751.69/x
  3. Step 3: Cross multiply
    290,873.43x = 435,864.85 × 195,751.69
  4. Step 4: Simplify right side
    290,873.43x = 85,321,279,420.06
  5. Step 5: Solve for x
    x = 85,321,279,420.06/290,873.43
  6. Step 6: Final answer
    x = 293,327.86

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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.