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Finding the Fourth Proportional to 290,752.98, 401,180.31 and 169,870.92

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Solution

The fourth proportional to 290,752.98, 401,180.31 and 169,870.92 is: 234,387.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,752.98 : 401,180.31 = 169,870.92 : x
  2. Step 2: Convert to fraction form
    290,752.98/401,180.31 = 169,870.92/x
  3. Step 3: Cross multiply
    290,752.98x = 401,180.31 × 169,870.92
  4. Step 4: Simplify right side
    290,752.98x = 68,148,868,345.59
  5. Step 5: Solve for x
    x = 68,148,868,345.59/290,752.98
  6. Step 6: Final answer
    x = 234,387.51

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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.