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Finding the Fourth Proportional to 293.52, 436.86 and 287.13

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Solution

The fourth proportional to 293.52, 436.86 and 287.13 is: 427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.52 : 436.86 = 287.13 : x
  2. Step 2: Convert to fraction form
    293.52/436.86 = 287.13/x
  3. Step 3: Cross multiply
    293.52x = 436.86 × 287.13
  4. Step 4: Simplify right side
    293.52x = 125,435.61
  5. Step 5: Solve for x
    x = 125,435.61/293.52
  6. Step 6: Final answer
    x = 427.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.