Home / 345,022.04-476,049-290,040.44

Finding the Fourth Proportional to 345,022.04, 476,049 and 290,040.44

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Solution

The fourth proportional to 345,022.04, 476,049 and 290,040.44 is: 400,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,022.04 : 476,049 = 290,040.44 : x
  2. Step 2: Convert to fraction form
    345,022.04/476,049 = 290,040.44/x
  3. Step 3: Cross multiply
    345,022.04x = 476,049 × 290,040.44
  4. Step 4: Simplify right side
    345,022.04x = 138,073,461,421.56
  5. Step 5: Solve for x
    x = 138,073,461,421.56/345,022.04
  6. Step 6: Final answer
    x = 400,187.37

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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.