Home / 407,971.62-611,938.73-141,752.97

Finding the Fourth Proportional to 407,971.62, 611,938.73 and 141,752.97

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Solution

The fourth proportional to 407,971.62, 611,938.73 and 141,752.97 is: 212,622.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,971.62 : 611,938.73 = 141,752.97 : x
  2. Step 2: Convert to fraction form
    407,971.62/611,938.73 = 141,752.97/x
  3. Step 3: Cross multiply
    407,971.62x = 611,938.73 × 141,752.97
  4. Step 4: Simplify right side
    407,971.62x = 86,744,132,789.91
  5. Step 5: Solve for x
    x = 86,744,132,789.91/407,971.62
  6. Step 6: Final answer
    x = 212,622.96

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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.