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Finding the Fourth Proportional to 290,651.29, 401,103.60 and 159,834.48

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Solution

The fourth proportional to 290,651.29, 401,103.60 and 159,834.48 is: 220,574.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,651.29 : 401,103.60 = 159,834.48 : x
  2. Step 2: Convert to fraction form
    290,651.29/401,103.60 = 159,834.48/x
  3. Step 3: Cross multiply
    290,651.29x = 401,103.60 × 159,834.48
  4. Step 4: Simplify right side
    290,651.29x = 64,110,185,332.13
  5. Step 5: Solve for x
    x = 64,110,185,332.13/290,651.29
  6. Step 6: Final answer
    x = 220,574.23

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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.