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Finding the Fourth Proportional to 1,495.28, 2,243.28 and 469.28

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Solution

The fourth proportional to 1,495.28, 2,243.28 and 469.28 is: 704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.28 : 2,243.28 = 469.28 : x
  2. Step 2: Convert to fraction form
    1,495.28/2,243.28 = 469.28/x
  3. Step 3: Cross multiply
    1,495.28x = 2,243.28 × 469.28
  4. Step 4: Simplify right side
    1,495.28x = 1,052,726.44
  5. Step 5: Solve for x
    x = 1,052,726.44/1,495.28
  6. Step 6: Final answer
    x = 704.03

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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.