Home / 401,556.06-554,147.34-231,790.19

Finding the Fourth Proportional to 401,556.06, 554,147.34 and 231,790.19

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Solution

The fourth proportional to 401,556.06, 554,147.34 and 231,790.19 is: 319,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,556.06 : 554,147.34 = 231,790.19 : x
  2. Step 2: Convert to fraction form
    401,556.06/554,147.34 = 231,790.19/x
  3. Step 3: Cross multiply
    401,556.06x = 554,147.34 × 231,790.19
  4. Step 4: Simplify right side
    401,556.06x = 128,445,914,455.86
  5. Step 5: Solve for x
    x = 128,445,914,455.86/401,556.06
  6. Step 6: Final answer
    x = 319,870.44

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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.