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Finding the Fourth Proportional to 290,570.30, 401,180.68 and 181,839.95

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Solution

The fourth proportional to 290,570.30, 401,180.68 and 181,839.95 is: 251,060.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,570.30 : 401,180.68 = 181,839.95 : x
  2. Step 2: Convert to fraction form
    290,570.30/401,180.68 = 181,839.95/x
  3. Step 3: Cross multiply
    290,570.30x = 401,180.68 × 181,839.95
  4. Step 4: Simplify right side
    290,570.30x = 72,950,674,792.17
  5. Step 5: Solve for x
    x = 72,950,674,792.17/290,570.30
  6. Step 6: Final answer
    x = 251,060.33

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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.