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Finding the Fourth Proportional to 538,801.80, 807,911.10 and 223,290.60

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Solution

The fourth proportional to 538,801.80, 807,911.10 and 223,290.60 is: 334,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,801.80 : 807,911.10 = 223,290.60 : x
  2. Step 2: Convert to fraction form
    538,801.80/807,911.10 = 223,290.60/x
  3. Step 3: Cross multiply
    538,801.80x = 807,911.10 × 223,290.60
  4. Step 4: Simplify right side
    538,801.80x = 180,398,954,265.66
  5. Step 5: Solve for x
    x = 180,398,954,265.66/538,801.80
  6. Step 6: Final answer
    x = 334,815.05

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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.