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Finding the Fourth Proportional to 290,633.84, 401,079.52 and 159,817.04

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Solution

The fourth proportional to 290,633.84, 401,079.52 and 159,817.04 is: 220,550.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,633.84 : 401,079.52 = 159,817.04 : x
  2. Step 2: Convert to fraction form
    290,633.84/401,079.52 = 159,817.04/x
  3. Step 3: Cross multiply
    290,633.84x = 401,079.52 × 159,817.04
  4. Step 4: Simplify right side
    290,633.84x = 64,099,341,691.02
  5. Step 5: Solve for x
    x = 64,099,341,691.02/290,633.84
  6. Step 6: Final answer
    x = 220,550.17

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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.