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Finding the Fourth Proportional to 329,420.32, 454,600 and 178,517.36

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Solution

The fourth proportional to 329,420.32, 454,600 and 178,517.36 is: 246,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,420.32 : 454,600 = 178,517.36 : x
  2. Step 2: Convert to fraction form
    329,420.32/454,600 = 178,517.36/x
  3. Step 3: Cross multiply
    329,420.32x = 454,600 × 178,517.36
  4. Step 4: Simplify right side
    329,420.32x = 81,153,991,856
  5. Step 5: Solve for x
    x = 81,153,991,856/329,420.32
  6. Step 6: Final answer
    x = 246,353.93

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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.