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Finding the Fourth Proportional to 265.94, 366.93 and 155.35

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Solution

The fourth proportional to 265.94, 366.93 and 155.35 is: 214.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.94 : 366.93 = 155.35 : x
  2. Step 2: Convert to fraction form
    265.94/366.93 = 155.35/x
  3. Step 3: Cross multiply
    265.94x = 366.93 × 155.35
  4. Step 4: Simplify right side
    265.94x = 57,000.74
  5. Step 5: Solve for x
    x = 57,000.74/265.94
  6. Step 6: Final answer
    x = 214.34

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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.