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Finding the Fourth Proportional to 330,434.46, 495,652.05 and 90,550.41

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Solution

The fourth proportional to 330,434.46, 495,652.05 and 90,550.41 is: 135,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,434.46 : 495,652.05 = 90,550.41 : x
  2. Step 2: Convert to fraction form
    330,434.46/495,652.05 = 90,550.41/x
  3. Step 3: Cross multiply
    330,434.46x = 495,652.05 × 90,550.41
  4. Step 4: Simplify right side
    330,434.46x = 44,881,496,344.84
  5. Step 5: Solve for x
    x = 44,881,496,344.84/330,434.46
  6. Step 6: Final answer
    x = 135,825.71

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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.