Home / 401,457.22-554,010.12-231,691.36

Finding the Fourth Proportional to 401,457.22, 554,010.12 and 231,691.36

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Solution

The fourth proportional to 401,457.22, 554,010.12 and 231,691.36 is: 319,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,457.22 : 554,010.12 = 231,691.36 : x
  2. Step 2: Convert to fraction form
    401,457.22/554,010.12 = 231,691.36/x
  3. Step 3: Cross multiply
    401,457.22x = 554,010.12 × 231,691.36
  4. Step 4: Simplify right side
    401,457.22x = 128,359,358,156.56
  5. Step 5: Solve for x
    x = 128,359,358,156.56/401,457.22
  6. Step 6: Final answer
    x = 319,733.59

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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.