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Finding the Fourth Proportional to 373,971.54, 516,012.75 and 221,035.44

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Solution

The fourth proportional to 373,971.54, 516,012.75 and 221,035.44 is: 304,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,971.54 : 516,012.75 = 221,035.44 : x
  2. Step 2: Convert to fraction form
    373,971.54/516,012.75 = 221,035.44/x
  3. Step 3: Cross multiply
    373,971.54x = 516,012.75 × 221,035.44
  4. Step 4: Simplify right side
    373,971.54x = 114,057,105,241.86
  5. Step 5: Solve for x
    x = 114,057,105,241.86/373,971.54
  6. Step 6: Final answer
    x = 304,988.73

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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.