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Finding the Fourth Proportional to 449.14, 619.74 and 262.50

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Solution

The fourth proportional to 449.14, 619.74 and 262.50 is: 362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.14 : 619.74 = 262.50 : x
  2. Step 2: Convert to fraction form
    449.14/619.74 = 262.50/x
  3. Step 3: Cross multiply
    449.14x = 619.74 × 262.50
  4. Step 4: Simplify right side
    449.14x = 162,681.75
  5. Step 5: Solve for x
    x = 162,681.75/449.14
  6. Step 6: Final answer
    x = 362.21

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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.