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Finding the Fourth Proportional to 325,814.80, 488,576.40 and 148,230.40

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Solution

The fourth proportional to 325,814.80, 488,576.40 and 148,230.40 is: 222,279.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,814.80 : 488,576.40 = 148,230.40 : x
  2. Step 2: Convert to fraction form
    325,814.80/488,576.40 = 148,230.40/x
  3. Step 3: Cross multiply
    325,814.80x = 488,576.40 × 148,230.40
  4. Step 4: Simplify right side
    325,814.80x = 72,421,875,202.56
  5. Step 5: Solve for x
    x = 72,421,875,202.56/325,814.80
  6. Step 6: Final answer
    x = 222,279.27

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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.