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Finding the Fourth Proportional to 290,875.43, 435,867.85 and 195,753.69

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Solution

The fourth proportional to 290,875.43, 435,867.85 and 195,753.69 is: 293,330.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,875.43 : 435,867.85 = 195,753.69 : x
  2. Step 2: Convert to fraction form
    290,875.43/435,867.85 = 195,753.69/x
  3. Step 3: Cross multiply
    290,875.43x = 435,867.85 × 195,753.69
  4. Step 4: Simplify right side
    290,875.43x = 85,322,739,989.87
  5. Step 5: Solve for x
    x = 85,322,739,989.87/290,875.43
  6. Step 6: Final answer
    x = 293,330.86

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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.