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Finding the Fourth Proportional to 463.88, 692.90 and 339.38

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Solution

The fourth proportional to 463.88, 692.90 and 339.38 is: 506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.88 : 692.90 = 339.38 : x
  2. Step 2: Convert to fraction form
    463.88/692.90 = 339.38/x
  3. Step 3: Cross multiply
    463.88x = 692.90 × 339.38
  4. Step 4: Simplify right side
    463.88x = 235,151.24
  5. Step 5: Solve for x
    x = 235,151.24/463.88
  6. Step 6: Final answer
    x = 506.93

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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.