Home / 401,131.98-553,566.38-219,839.90

Finding the Fourth Proportional to 401,131.98, 553,566.38 and 219,839.90

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Solution

The fourth proportional to 401,131.98, 553,566.38 and 219,839.90 is: 303,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,131.98 : 553,566.38 = 219,839.90 : x
  2. Step 2: Convert to fraction form
    401,131.98/553,566.38 = 219,839.90/x
  3. Step 3: Cross multiply
    401,131.98x = 553,566.38 × 219,839.90
  4. Step 4: Simplify right side
    401,131.98x = 121,695,973,755.53
  5. Step 5: Solve for x
    x = 121,695,973,755.53/401,131.98
  6. Step 6: Final answer
    x = 303,381.38

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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.