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Finding the Fourth Proportional to 330,713.66, 496,069.38 and 90,827.78

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Solution

The fourth proportional to 330,713.66, 496,069.38 and 90,827.78 is: 136,241.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,713.66 : 496,069.38 = 90,827.78 : x
  2. Step 2: Convert to fraction form
    330,713.66/496,069.38 = 90,827.78/x
  3. Step 3: Cross multiply
    330,713.66x = 496,069.38 × 90,827.78
  4. Step 4: Simplify right side
    330,713.66x = 45,056,880,511.38
  5. Step 5: Solve for x
    x = 45,056,880,511.38/330,713.66
  6. Step 6: Final answer
    x = 136,241.37

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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.