Home / 421,175.60-581,213.78-230,190.36

Finding the Fourth Proportional to 421,175.60, 581,213.78 and 230,190.36

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Solution

The fourth proportional to 421,175.60, 581,213.78 and 230,190.36 is: 317,658.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,175.60 : 581,213.78 = 230,190.36 : x
  2. Step 2: Convert to fraction form
    421,175.60/581,213.78 = 230,190.36/x
  3. Step 3: Cross multiply
    421,175.60x = 581,213.78 × 230,190.36
  4. Step 4: Simplify right side
    421,175.60x = 133,789,806,787.87
  5. Step 5: Solve for x
    x = 133,789,806,787.87/421,175.60
  6. Step 6: Final answer
    x = 317,658.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.