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Finding the Fourth Proportional to 372.77, 513.82 and 293.95

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Solution

The fourth proportional to 372.77, 513.82 and 293.95 is: 405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.77 : 513.82 = 293.95 : x
  2. Step 2: Convert to fraction form
    372.77/513.82 = 293.95/x
  3. Step 3: Cross multiply
    372.77x = 513.82 × 293.95
  4. Step 4: Simplify right side
    372.77x = 151,038.40
  5. Step 5: Solve for x
    x = 151,038.40/372.77
  6. Step 6: Final answer
    x = 405.18

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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.