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Finding the Fourth Proportional to 330,659.60, 495,114.60 and 260,092.40

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Solution

The fourth proportional to 330,659.60, 495,114.60 and 260,092.40 is: 389,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,659.60 : 495,114.60 = 260,092.40 : x
  2. Step 2: Convert to fraction form
    330,659.60/495,114.60 = 260,092.40/x
  3. Step 3: Cross multiply
    330,659.60x = 495,114.60 × 260,092.40
  4. Step 4: Simplify right side
    330,659.60x = 128,775,544,589.04
  5. Step 5: Solve for x
    x = 128,775,544,589.04/330,659.60
  6. Step 6: Final answer
    x = 389,450.49

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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.