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Finding the Fourth Proportional to 265.51, 366.40 and 147.49

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Solution

The fourth proportional to 265.51, 366.40 and 147.49 is: 203.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.51 : 366.40 = 147.49 : x
  2. Step 2: Convert to fraction form
    265.51/366.40 = 147.49/x
  3. Step 3: Cross multiply
    265.51x = 366.40 × 147.49
  4. Step 4: Simplify right side
    265.51x = 54,040.34
  5. Step 5: Solve for x
    x = 54,040.34/265.51
  6. Step 6: Final answer
    x = 203.53

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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.