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Finding the Fourth Proportional to 448.71, 619.29 and 252.18

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Solution

The fourth proportional to 448.71, 619.29 and 252.18 is: 348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.71 : 619.29 = 252.18 : x
  2. Step 2: Convert to fraction form
    448.71/619.29 = 252.18/x
  3. Step 3: Cross multiply
    448.71x = 619.29 × 252.18
  4. Step 4: Simplify right side
    448.71x = 156,172.55
  5. Step 5: Solve for x
    x = 156,172.55/448.71
  6. Step 6: Final answer
    x = 348.05

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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.