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Finding the Fourth Proportional to 402,579.04, 604,041 and 136,367.68

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Solution

The fourth proportional to 402,579.04, 604,041 and 136,367.68 is: 204,609.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,579.04 : 604,041 = 136,367.68 : x
  2. Step 2: Convert to fraction form
    402,579.04/604,041 = 136,367.68/x
  3. Step 3: Cross multiply
    402,579.04x = 604,041 × 136,367.68
  4. Step 4: Simplify right side
    402,579.04x = 82,371,669,794.88
  5. Step 5: Solve for x
    x = 82,371,669,794.88/402,579.04
  6. Step 6: Final answer
    x = 204,609.93

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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.