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Finding the Fourth Proportional to 402,494.70, 603,742.05 and 192,542.70

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Solution

The fourth proportional to 402,494.70, 603,742.05 and 192,542.70 is: 288,814.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,494.70 : 603,742.05 = 192,542.70 : x
  2. Step 2: Convert to fraction form
    402,494.70/603,742.05 = 192,542.70/x
  3. Step 3: Cross multiply
    402,494.70x = 603,742.05 × 192,542.70
  4. Step 4: Simplify right side
    402,494.70x = 116,246,124,410.54
  5. Step 5: Solve for x
    x = 116,246,124,410.54/402,494.70
  6. Step 6: Final answer
    x = 288,814.05

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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.