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Finding the Fourth Proportional to 223,820.20, 336,119.10 and 216,821.80

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Solution

The fourth proportional to 223,820.20, 336,119.10 and 216,821.80 is: 325,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,820.20 : 336,119.10 = 216,821.80 : x
  2. Step 2: Convert to fraction form
    223,820.20/336,119.10 = 216,821.80/x
  3. Step 3: Cross multiply
    223,820.20x = 336,119.10 × 216,821.80
  4. Step 4: Simplify right side
    223,820.20x = 72,877,948,276.38
  5. Step 5: Solve for x
    x = 72,877,948,276.38/223,820.20
  6. Step 6: Final answer
    x = 325,609.34

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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.