Home / 329,220.96-493,733.40-139,679.04

Finding the Fourth Proportional to 329,220.96, 493,733.40 and 139,679.04

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Solution

The fourth proportional to 329,220.96, 493,733.40 and 139,679.04 is: 209,476.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,220.96 : 493,733.40 = 139,679.04 : x
  2. Step 2: Convert to fraction form
    329,220.96/493,733.40 = 139,679.04/x
  3. Step 3: Cross multiply
    329,220.96x = 493,733.40 × 139,679.04
  4. Step 4: Simplify right side
    329,220.96x = 68,964,207,327.94
  5. Step 5: Solve for x
    x = 68,964,207,327.94/329,220.96
  6. Step 6: Final answer
    x = 209,476.96

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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.