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Finding the Fourth Proportional to 443.84, 611.52 and 373.92

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Solution

The fourth proportional to 443.84, 611.52 and 373.92 is: 515.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.84 : 611.52 = 373.92 : x
  2. Step 2: Convert to fraction form
    443.84/611.52 = 373.92/x
  3. Step 3: Cross multiply
    443.84x = 611.52 × 373.92
  4. Step 4: Simplify right side
    443.84x = 228,659.56
  5. Step 5: Solve for x
    x = 228,659.56/443.84
  6. Step 6: Final answer
    x = 515.18

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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.