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Finding the Fourth Proportional to 304,800, 420,624 and 170,666.88

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Solution

The fourth proportional to 304,800, 420,624 and 170,666.88 is: 235,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,800 : 420,624 = 170,666.88 : x
  2. Step 2: Convert to fraction form
    304,800/420,624 = 170,666.88/x
  3. Step 3: Cross multiply
    304,800x = 420,624 × 170,666.88
  4. Step 4: Simplify right side
    304,800x = 71,786,585,733.12
  5. Step 5: Solve for x
    x = 71,786,585,733.12/304,800
  6. Step 6: Final answer
    x = 235,520.29

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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.