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Finding the Fourth Proportional to 548.55, 756.65 and 335.77

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Solution

The fourth proportional to 548.55, 756.65 and 335.77 is: 463.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.55 : 756.65 = 335.77 : x
  2. Step 2: Convert to fraction form
    548.55/756.65 = 335.77/x
  3. Step 3: Cross multiply
    548.55x = 756.65 × 335.77
  4. Step 4: Simplify right side
    548.55x = 254,056.59
  5. Step 5: Solve for x
    x = 254,056.59/548.55
  6. Step 6: Final answer
    x = 463.14

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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.