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Finding the Fourth Proportional to 538,982.70, 808,668.45 and 223,536.30

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Solution

The fourth proportional to 538,982.70, 808,668.45 and 223,536.30 is: 335,385.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,982.70 : 808,668.45 = 223,536.30 : x
  2. Step 2: Convert to fraction form
    538,982.70/808,668.45 = 223,536.30/x
  3. Step 3: Cross multiply
    538,982.70x = 808,668.45 × 223,536.30
  4. Step 4: Simplify right side
    538,982.70x = 180,766,753,239.74
  5. Step 5: Solve for x
    x = 180,766,753,239.74/538,982.70
  6. Step 6: Final answer
    x = 335,385.07

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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.