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Finding the Fourth Proportional to 547.04, 818.84 and 302.78

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Solution

The fourth proportional to 547.04, 818.84 and 302.78 is: 453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.04 : 818.84 = 302.78 : x
  2. Step 2: Convert to fraction form
    547.04/818.84 = 302.78/x
  3. Step 3: Cross multiply
    547.04x = 818.84 × 302.78
  4. Step 4: Simplify right side
    547.04x = 247,925.04
  5. Step 5: Solve for x
    x = 247,925.04/547.04
  6. Step 6: Final answer
    x = 453.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.