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Finding the Fourth Proportional to 404,679.90, 558,460.08 and 223,388.46

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Solution

The fourth proportional to 404,679.90, 558,460.08 and 223,388.46 is: 308,277.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,679.90 : 558,460.08 = 223,388.46 : x
  2. Step 2: Convert to fraction form
    404,679.90/558,460.08 = 223,388.46/x
  3. Step 3: Cross multiply
    404,679.90x = 558,460.08 × 223,388.46
  4. Step 4: Simplify right side
    404,679.90x = 124,753,537,242.68
  5. Step 5: Solve for x
    x = 124,753,537,242.68/404,679.90
  6. Step 6: Final answer
    x = 308,277.08

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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.