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Finding the Fourth Proportional to 330,016.60, 494,150.10 and 260,032.60

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Solution

The fourth proportional to 330,016.60, 494,150.10 and 260,032.60 is: 389,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,016.60 : 494,150.10 = 260,032.60 : x
  2. Step 2: Convert to fraction form
    330,016.60/494,150.10 = 260,032.60/x
  3. Step 3: Cross multiply
    330,016.60x = 494,150.10 × 260,032.60
  4. Step 4: Simplify right side
    330,016.60x = 128,495,135,293.26
  5. Step 5: Solve for x
    x = 128,495,135,293.26/330,016.60
  6. Step 6: Final answer
    x = 389,359.61

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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.