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Finding the Fourth Proportional to 448.35, 616.90 and 437.55

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Solution

The fourth proportional to 448.35, 616.90 and 437.55 is: 602.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.35 : 616.90 = 437.55 : x
  2. Step 2: Convert to fraction form
    448.35/616.90 = 437.55/x
  3. Step 3: Cross multiply
    448.35x = 616.90 × 437.55
  4. Step 4: Simplify right side
    448.35x = 269,924.60
  5. Step 5: Solve for x
    x = 269,924.60/448.35
  6. Step 6: Final answer
    x = 602.04

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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.