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Finding the Fourth Proportional to 329,643.12, 454,906.08 and 178,740.12

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Solution

The fourth proportional to 329,643.12, 454,906.08 and 178,740.12 is: 246,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,643.12 : 454,906.08 = 178,740.12 : x
  2. Step 2: Convert to fraction form
    329,643.12/454,906.08 = 178,740.12/x
  3. Step 3: Cross multiply
    329,643.12x = 454,906.08 × 178,740.12
  4. Step 4: Simplify right side
    329,643.12x = 81,309,967,327.93
  5. Step 5: Solve for x
    x = 81,309,967,327.93/329,643.12
  6. Step 6: Final answer
    x = 246,660.59

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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.