Home / 421,172.26-581,209.09-230,187.02

Finding the Fourth Proportional to 421,172.26, 581,209.09 and 230,187.02

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Solution

The fourth proportional to 421,172.26, 581,209.09 and 230,187.02 is: 317,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,172.26 : 581,209.09 = 230,187.02 : x
  2. Step 2: Convert to fraction form
    421,172.26/581,209.09 = 230,187.02/x
  3. Step 3: Cross multiply
    421,172.26x = 581,209.09 × 230,187.02
  4. Step 4: Simplify right side
    421,172.26x = 133,786,784,942.50
  5. Step 5: Solve for x
    x = 133,786,784,942.50/421,172.26
  6. Step 6: Final answer
    x = 317,653.37

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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.