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Finding the Fourth Proportional to 329,659.70, 494,489.55 and 306,040.10

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Solution

The fourth proportional to 329,659.70, 494,489.55 and 306,040.10 is: 459,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,659.70 : 494,489.55 = 306,040.10 : x
  2. Step 2: Convert to fraction form
    329,659.70/494,489.55 = 306,040.10/x
  3. Step 3: Cross multiply
    329,659.70x = 494,489.55 × 306,040.10
  4. Step 4: Simplify right side
    329,659.70x = 151,333,631,330.96
  5. Step 5: Solve for x
    x = 151,333,631,330.96/329,659.70
  6. Step 6: Final answer
    x = 459,060.15

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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.