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Finding the Fourth Proportional to 330,579.96, 495,672.84 and 130,929

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Solution

The fourth proportional to 330,579.96, 495,672.84 and 130,929 is: 196,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,579.96 : 495,672.84 = 130,929 : x
  2. Step 2: Convert to fraction form
    330,579.96/495,672.84 = 130,929/x
  3. Step 3: Cross multiply
    330,579.96x = 495,672.84 × 130,929
  4. Step 4: Simplify right side
    330,579.96x = 64,897,949,268.36
  5. Step 5: Solve for x
    x = 64,897,949,268.36/330,579.96
  6. Step 6: Final answer
    x = 196,315.44

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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.