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Finding the Fourth Proportional to 538,998.30, 808,205.85 and 223,487.10

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Solution

The fourth proportional to 538,998.30, 808,205.85 and 223,487.10 is: 335,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,998.30 : 808,205.85 = 223,487.10 : x
  2. Step 2: Convert to fraction form
    538,998.30/808,205.85 = 223,487.10/x
  3. Step 3: Cross multiply
    538,998.30x = 808,205.85 × 223,487.10
  4. Step 4: Simplify right side
    538,998.30x = 180,623,581,619.54
  5. Step 5: Solve for x
    x = 180,623,581,619.54/538,998.30
  6. Step 6: Final answer
    x = 335,109.74

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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.