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Finding the Fourth Proportional to 330,233.40, 495,350.10 and 259,374.60

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Solution

The fourth proportional to 330,233.40, 495,350.10 and 259,374.60 is: 389,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,233.40 : 495,350.10 = 259,374.60 : x
  2. Step 2: Convert to fraction form
    330,233.40/495,350.10 = 259,374.60/x
  3. Step 3: Cross multiply
    330,233.40x = 495,350.10 × 259,374.60
  4. Step 4: Simplify right side
    330,233.40x = 128,481,234,047.46
  5. Step 5: Solve for x
    x = 128,481,234,047.46/330,233.40
  6. Step 6: Final answer
    x = 389,061.90

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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.