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Finding the Fourth Proportional to 330,239.65, 495,203.35 and 127,930.52

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Solution

The fourth proportional to 330,239.65, 495,203.35 and 127,930.52 is: 191,835.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,239.65 : 495,203.35 = 127,930.52 : x
  2. Step 2: Convert to fraction form
    330,239.65/495,203.35 = 127,930.52/x
  3. Step 3: Cross multiply
    330,239.65x = 495,203.35 × 127,930.52
  4. Step 4: Simplify right side
    330,239.65x = 63,351,618,955.57
  5. Step 5: Solve for x
    x = 63,351,618,955.57/330,239.65
  6. Step 6: Final answer
    x = 191,835.29

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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.