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Finding the Fourth Proportional to 356,398.64, 491,812.56 and 195,254.48

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Solution

The fourth proportional to 356,398.64, 491,812.56 and 195,254.48 is: 269,441.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,398.64 : 491,812.56 = 195,254.48 : x
  2. Step 2: Convert to fraction form
    356,398.64/491,812.56 = 195,254.48/x
  3. Step 3: Cross multiply
    356,398.64x = 491,812.56 × 195,254.48
  4. Step 4: Simplify right side
    356,398.64x = 96,028,605,660.27
  5. Step 5: Solve for x
    x = 96,028,605,660.27/356,398.64
  6. Step 6: Final answer
    x = 269,441.56

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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.