Home / 290,610.12-401,030.82-163,291.08

Finding the Fourth Proportional to 290,610.12, 401,030.82 and 163,291.08

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Solution

The fourth proportional to 290,610.12, 401,030.82 and 163,291.08 is: 225,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,610.12 : 401,030.82 = 163,291.08 : x
  2. Step 2: Convert to fraction form
    290,610.12/401,030.82 = 163,291.08/x
  3. Step 3: Cross multiply
    290,610.12x = 401,030.82 × 163,291.08
  4. Step 4: Simplify right side
    290,610.12x = 65,484,755,711.09
  5. Step 5: Solve for x
    x = 65,484,755,711.09/290,610.12
  6. Step 6: Final answer
    x = 225,335.43

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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.