Home / 499,556.82-749,253.16-215,171.36

Finding the Fourth Proportional to 499,556.82, 749,253.16 and 215,171.36

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Solution

The fourth proportional to 499,556.82, 749,253.16 and 215,171.36 is: 322,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,556.82 : 749,253.16 = 215,171.36 : x
  2. Step 2: Convert to fraction form
    499,556.82/749,253.16 = 215,171.36/x
  3. Step 3: Cross multiply
    499,556.82x = 749,253.16 × 215,171.36
  4. Step 4: Simplify right side
    499,556.82x = 161,217,821,421.50
  5. Step 5: Solve for x
    x = 161,217,821,421.50/499,556.82
  6. Step 6: Final answer
    x = 322,721.69

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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.