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Finding the Fourth Proportional to 329,076.40, 494,197.80 and 254,378.20

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Solution

The fourth proportional to 329,076.40, 494,197.80 and 254,378.20 is: 382,018.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,076.40 : 494,197.80 = 254,378.20 : x
  2. Step 2: Convert to fraction form
    329,076.40/494,197.80 = 254,378.20/x
  3. Step 3: Cross multiply
    329,076.40x = 494,197.80 × 254,378.20
  4. Step 4: Simplify right side
    329,076.40x = 125,713,146,807.96
  5. Step 5: Solve for x
    x = 125,713,146,807.96/329,076.40
  6. Step 6: Final answer
    x = 382,018.12

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1.5x scale

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.