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Finding the Fourth Proportional to 404,711.58, 558,487.30 and 223,419.60

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Solution

The fourth proportional to 404,711.58, 558,487.30 and 223,419.60 is: 308,310.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,711.58 : 558,487.30 = 223,419.60 : x
  2. Step 2: Convert to fraction form
    404,711.58/558,487.30 = 223,419.60/x
  3. Step 3: Cross multiply
    404,711.58x = 558,487.30 × 223,419.60
  4. Step 4: Simplify right side
    404,711.58x = 124,777,009,171.08
  5. Step 5: Solve for x
    x = 124,777,009,171.08/404,711.58
  6. Step 6: Final answer
    x = 308,310.94

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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.