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Finding the Fourth Proportional to 329,029.40, 494,127.30 and 254,331.20

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Solution

The fourth proportional to 329,029.40, 494,127.30 and 254,331.20 is: 381,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,029.40 : 494,127.30 = 254,331.20 : x
  2. Step 2: Convert to fraction form
    329,029.40/494,127.30 = 254,331.20/x
  3. Step 3: Cross multiply
    329,029.40x = 494,127.30 × 254,331.20
  4. Step 4: Simplify right side
    329,029.40x = 125,671,989,161.76
  5. Step 5: Solve for x
    x = 125,671,989,161.76/329,029.40
  6. Step 6: Final answer
    x = 381,947.60

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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.