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Finding the Fourth Proportional to 330,129.60, 495,165.60 and 108,513.60

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Solution

The fourth proportional to 330,129.60, 495,165.60 and 108,513.60 is: 162,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,129.60 : 495,165.60 = 108,513.60 : x
  2. Step 2: Convert to fraction form
    330,129.60/495,165.60 = 108,513.60/x
  3. Step 3: Cross multiply
    330,129.60x = 495,165.60 × 108,513.60
  4. Step 4: Simplify right side
    330,129.60x = 53,732,201,852.16
  5. Step 5: Solve for x
    x = 53,732,201,852.16/330,129.60
  6. Step 6: Final answer
    x = 162,760.93

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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.