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Finding the Fourth Proportional to 330,656.70, 456,310.98 and 247,723.74

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Solution

The fourth proportional to 330,656.70, 456,310.98 and 247,723.74 is: 341,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,656.70 : 456,310.98 = 247,723.74 : x
  2. Step 2: Convert to fraction form
    330,656.70/456,310.98 = 247,723.74/x
  3. Step 3: Cross multiply
    330,656.70x = 456,310.98 × 247,723.74
  4. Step 4: Simplify right side
    330,656.70x = 113,039,062,568.67
  5. Step 5: Solve for x
    x = 113,039,062,568.67/330,656.70
  6. Step 6: Final answer
    x = 341,862.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.