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Finding the Fourth Proportional to 290,634.84, 401,080.90 and 159,818.04

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Solution

The fourth proportional to 290,634.84, 401,080.90 and 159,818.04 is: 220,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,634.84 : 401,080.90 = 159,818.04 : x
  2. Step 2: Convert to fraction form
    290,634.84/401,080.90 = 159,818.04/x
  3. Step 3: Cross multiply
    290,634.84x = 401,080.90 × 159,818.04
  4. Step 4: Simplify right side
    290,634.84x = 64,099,963,319.44
  5. Step 5: Solve for x
    x = 64,099,963,319.44/290,634.84
  6. Step 6: Final answer
    x = 220,551.55

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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.