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Finding the Fourth Proportional to 1,536.25, 2,304.66 and 805.63

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Solution

The fourth proportional to 1,536.25, 2,304.66 and 805.63 is: 1,208.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.25 : 2,304.66 = 805.63 : x
  2. Step 2: Convert to fraction form
    1,536.25/2,304.66 = 805.63/x
  3. Step 3: Cross multiply
    1,536.25x = 2,304.66 × 805.63
  4. Step 4: Simplify right side
    1,536.25x = 1,856,703.24
  5. Step 5: Solve for x
    x = 1,856,703.24/1,536.25
  6. Step 6: Final answer
    x = 1,208.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.