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Finding the Fourth Proportional to 402,706.12, 603,252.72 and 242,692.96

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Solution

The fourth proportional to 402,706.12, 603,252.72 and 242,692.96 is: 363,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,706.12 : 603,252.72 = 242,692.96 : x
  2. Step 2: Convert to fraction form
    402,706.12/603,252.72 = 242,692.96/x
  3. Step 3: Cross multiply
    402,706.12x = 603,252.72 × 242,692.96
  4. Step 4: Simplify right side
    402,706.12x = 146,405,188,244.85
  5. Step 5: Solve for x
    x = 146,405,188,244.85/402,706.12
  6. Step 6: Final answer
    x = 363,553.42

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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.