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Finding the Fourth Proportional to 503.44, 750.44 and 448.32

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Solution

The fourth proportional to 503.44, 750.44 and 448.32 is: 668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.44 : 750.44 = 448.32 : x
  2. Step 2: Convert to fraction form
    503.44/750.44 = 448.32/x
  3. Step 3: Cross multiply
    503.44x = 750.44 × 448.32
  4. Step 4: Simplify right side
    503.44x = 336,437.26
  5. Step 5: Solve for x
    x = 336,437.26/503.44
  6. Step 6: Final answer
    x = 668.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.