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Finding the Fourth Proportional to 290,569.30, 401,179.30 and 181,838.95

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Solution

The fourth proportional to 290,569.30, 401,179.30 and 181,838.95 is: 251,058.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,569.30 : 401,179.30 = 181,838.95 : x
  2. Step 2: Convert to fraction form
    290,569.30/401,179.30 = 181,838.95/x
  3. Step 3: Cross multiply
    290,569.30x = 401,179.30 × 181,838.95
  4. Step 4: Simplify right side
    290,569.30x = 72,950,021,216.19
  5. Step 5: Solve for x
    x = 72,950,021,216.19/290,569.30
  6. Step 6: Final answer
    x = 251,058.94

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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.