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Finding the Fourth Proportional to 404,740.56, 558,542.12 and 223,452.64

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Solution

The fourth proportional to 404,740.56, 558,542.12 and 223,452.64 is: 308,364.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,740.56 : 558,542.12 = 223,452.64 : x
  2. Step 2: Convert to fraction form
    404,740.56/558,542.12 = 223,452.64/x
  3. Step 3: Cross multiply
    404,740.56x = 558,542.12 × 223,452.64
  4. Step 4: Simplify right side
    404,740.56x = 124,807,711,265.20
  5. Step 5: Solve for x
    x = 124,807,711,265.20/404,740.56
  6. Step 6: Final answer
    x = 308,364.72

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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.