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Finding the Fourth Proportional to 462.35, 692.81 and 290.99

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Solution

The fourth proportional to 462.35, 692.81 and 290.99 is: 436.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.35 : 692.81 = 290.99 : x
  2. Step 2: Convert to fraction form
    462.35/692.81 = 290.99/x
  3. Step 3: Cross multiply
    462.35x = 692.81 × 290.99
  4. Step 4: Simplify right side
    462.35x = 201,599.33
  5. Step 5: Solve for x
    x = 201,599.33/462.35
  6. Step 6: Final answer
    x = 436.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.