Home / 345,001.24-476,020.36-290,019.66

Finding the Fourth Proportional to 345,001.24, 476,020.36 and 290,019.66

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Solution

The fourth proportional to 345,001.24, 476,020.36 and 290,019.66 is: 400,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,001.24 : 476,020.36 = 290,019.66 : x
  2. Step 2: Convert to fraction form
    345,001.24/476,020.36 = 290,019.66/x
  3. Step 3: Cross multiply
    345,001.24x = 476,020.36 × 290,019.66
  4. Step 4: Simplify right side
    345,001.24x = 138,055,261,537.73
  5. Step 5: Solve for x
    x = 138,055,261,537.73/345,001.24
  6. Step 6: Final answer
    x = 400,158.74

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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.