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Finding the Fourth Proportional to 501.96, 692.71 and 292.18

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Solution

The fourth proportional to 501.96, 692.71 and 292.18 is: 403.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.96 : 692.71 = 292.18 : x
  2. Step 2: Convert to fraction form
    501.96/692.71 = 292.18/x
  3. Step 3: Cross multiply
    501.96x = 692.71 × 292.18
  4. Step 4: Simplify right side
    501.96x = 202,396.01
  5. Step 5: Solve for x
    x = 202,396.01/501.96
  6. Step 6: Final answer
    x = 403.21

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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.