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Finding the Fourth Proportional to 304,793, 420,614.50 and 170,659.88

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Solution

The fourth proportional to 304,793, 420,614.50 and 170,659.88 is: 235,510.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,793 : 420,614.50 = 170,659.88 : x
  2. Step 2: Convert to fraction form
    304,793/420,614.50 = 170,659.88/x
  3. Step 3: Cross multiply
    304,793x = 420,614.50 × 170,659.88
  4. Step 4: Simplify right side
    304,793x = 71,782,020,096.26
  5. Step 5: Solve for x
    x = 71,782,020,096.26/304,793
  6. Step 6: Final answer
    x = 235,510.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.