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Finding the Fourth Proportional to 329,028.40, 494,125.80 and 254,330.20

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Solution

The fourth proportional to 329,028.40, 494,125.80 and 254,330.20 is: 381,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,028.40 : 494,125.80 = 254,330.20 : x
  2. Step 2: Convert to fraction form
    329,028.40/494,125.80 = 254,330.20/x
  3. Step 3: Cross multiply
    329,028.40x = 494,125.80 × 254,330.20
  4. Step 4: Simplify right side
    329,028.40x = 125,671,113,539.16
  5. Step 5: Solve for x
    x = 125,671,113,539.16/329,028.40
  6. Step 6: Final answer
    x = 381,946.10

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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.