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Finding the Fourth Proportional to 482.10, 663.72 and 448.98

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Solution

The fourth proportional to 482.10, 663.72 and 448.98 is: 618.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.10 : 663.72 = 448.98 : x
  2. Step 2: Convert to fraction form
    482.10/663.72 = 448.98/x
  3. Step 3: Cross multiply
    482.10x = 663.72 × 448.98
  4. Step 4: Simplify right side
    482.10x = 297,997.01
  5. Step 5: Solve for x
    x = 297,997.01/482.10
  6. Step 6: Final answer
    x = 618.12

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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.