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Finding the Fourth Proportional to 356,362.79, 491,781.20 and 195,214.29

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Solution

The fourth proportional to 356,362.79, 491,781.20 and 195,214.29 is: 269,396.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,362.79 : 491,781.20 = 195,214.29 : x
  2. Step 2: Convert to fraction form
    356,362.79/491,781.20 = 195,214.29/x
  3. Step 3: Cross multiply
    356,362.79x = 491,781.20 × 195,214.29
  4. Step 4: Simplify right side
    356,362.79x = 96,002,716,817.28
  5. Step 5: Solve for x
    x = 96,002,716,817.28/356,362.79
  6. Step 6: Final answer
    x = 269,396.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.