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Finding the Fourth Proportional to 329,724.95, 494,329.05 and 130,194.69

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Solution

The fourth proportional to 329,724.95, 494,329.05 and 130,194.69 is: 195,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,724.95 : 494,329.05 = 130,194.69 : x
  2. Step 2: Convert to fraction form
    329,724.95/494,329.05 = 130,194.69/x
  3. Step 3: Cross multiply
    329,724.95x = 494,329.05 × 130,194.69
  4. Step 4: Simplify right side
    329,724.95x = 64,359,015,080.78
  5. Step 5: Solve for x
    x = 64,359,015,080.78/329,724.95
  6. Step 6: Final answer
    x = 195,190.01

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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.