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Finding the Fourth Proportional to 329,070.80, 493,507.96 and 139,527.96

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Solution

The fourth proportional to 329,070.80, 493,507.96 and 139,527.96 is: 209,250.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,070.80 : 493,507.96 = 139,527.96 : x
  2. Step 2: Convert to fraction form
    329,070.80/493,507.96 = 139,527.96/x
  3. Step 3: Cross multiply
    329,070.80x = 493,507.96 × 139,527.96
  4. Step 4: Simplify right side
    329,070.80x = 68,858,158,902.56
  5. Step 5: Solve for x
    x = 68,858,158,902.56/329,070.80
  6. Step 6: Final answer
    x = 209,250.29

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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.