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Finding the Fourth Proportional to 462.32, 692.87 and 253.55

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Solution

The fourth proportional to 462.32, 692.87 and 253.55 is: 379.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.32 : 692.87 = 253.55 : x
  2. Step 2: Convert to fraction form
    462.32/692.87 = 253.55/x
  3. Step 3: Cross multiply
    462.32x = 692.87 × 253.55
  4. Step 4: Simplify right side
    462.32x = 175,677.19
  5. Step 5: Solve for x
    x = 175,677.19/462.32
  6. Step 6: Final answer
    x = 379.99

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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.