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Finding the Fourth Proportional to 330,514.64, 495,783.72 and 105,845.88

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Solution

The fourth proportional to 330,514.64, 495,783.72 and 105,845.88 is: 158,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,514.64 : 495,783.72 = 105,845.88 : x
  2. Step 2: Convert to fraction form
    330,514.64/495,783.72 = 105,845.88/x
  3. Step 3: Cross multiply
    330,514.64x = 495,783.72 × 105,845.88
  4. Step 4: Simplify right side
    330,514.64x = 52,476,664,133.07
  5. Step 5: Solve for x
    x = 52,476,664,133.07/330,514.64
  6. Step 6: Final answer
    x = 158,772.59

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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.