Home / 401,557.06-554,148.72-231,791.19

Finding the Fourth Proportional to 401,557.06, 554,148.72 and 231,791.19

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Solution

The fourth proportional to 401,557.06, 554,148.72 and 231,791.19 is: 319,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,557.06 : 554,148.72 = 231,791.19 : x
  2. Step 2: Convert to fraction form
    401,557.06/554,148.72 = 231,791.19/x
  3. Step 3: Cross multiply
    401,557.06x = 554,148.72 × 231,791.19
  4. Step 4: Simplify right side
    401,557.06x = 128,446,791,245.78
  5. Step 5: Solve for x
    x = 128,446,791,245.78/401,557.06
  6. Step 6: Final answer
    x = 319,871.83

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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.