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Finding the Fourth Proportional to 657.18, 906.93 and 362.46

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Solution

The fourth proportional to 657.18, 906.93 and 362.46 is: 500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.18 : 906.93 = 362.46 : x
  2. Step 2: Convert to fraction form
    657.18/906.93 = 362.46/x
  3. Step 3: Cross multiply
    657.18x = 906.93 × 362.46
  4. Step 4: Simplify right side
    657.18x = 328,725.85
  5. Step 5: Solve for x
    x = 328,725.85/657.18
  6. Step 6: Final answer
    x = 500.21

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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.