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Finding the Fourth Proportional to 44.80, 64.90 and 44.80

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Solution

The fourth proportional to 44.80, 64.90 and 44.80 is: 64.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.80 : 64.90 = 44.80 : x
  2. Step 2: Convert to fraction form
    44.80/64.90 = 44.80/x
  3. Step 3: Cross multiply
    44.80x = 64.90 × 44.80
  4. Step 4: Simplify right side
    44.80x = 2,907.52
  5. Step 5: Solve for x
    x = 2,907.52/44.80
  6. Step 6: Final answer
    x = 64.90

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.