Home / 499,555.82-749,251.67-215,170.36

Finding the Fourth Proportional to 499,555.82, 749,251.67 and 215,170.36

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Solution

The fourth proportional to 499,555.82, 749,251.67 and 215,170.36 is: 322,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,555.82 : 749,251.67 = 215,170.36 : x
  2. Step 2: Convert to fraction form
    499,555.82/749,251.67 = 215,170.36/x
  3. Step 3: Cross multiply
    499,555.82x = 749,251.67 × 215,170.36
  4. Step 4: Simplify right side
    499,555.82x = 161,216,748,615.52
  5. Step 5: Solve for x
    x = 161,216,748,615.52/499,555.82
  6. Step 6: Final answer
    x = 322,720.19

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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.