Home / 400,138.14-552,182.82-218,849.49

Finding the Fourth Proportional to 400,138.14, 552,182.82 and 218,849.49

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Solution

The fourth proportional to 400,138.14, 552,182.82 and 218,849.49 is: 302,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,138.14 : 552,182.82 = 218,849.49 : x
  2. Step 2: Convert to fraction form
    400,138.14/552,182.82 = 218,849.49/x
  3. Step 3: Cross multiply
    400,138.14x = 552,182.82 × 218,849.49
  4. Step 4: Simplify right side
    400,138.14x = 120,844,928,543.76
  5. Step 5: Solve for x
    x = 120,844,928,543.76/400,138.14
  6. Step 6: Final answer
    x = 302,008.02

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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.