Home / 421,269.05-581,348.34-230,282.90

Finding the Fourth Proportional to 421,269.05, 581,348.34 and 230,282.90

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Solution

The fourth proportional to 421,269.05, 581,348.34 and 230,282.90 is: 317,788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,269.05 : 581,348.34 = 230,282.90 : x
  2. Step 2: Convert to fraction form
    421,269.05/581,348.34 = 230,282.90/x
  3. Step 3: Cross multiply
    421,269.05x = 581,348.34 × 230,282.90
  4. Step 4: Simplify right side
    421,269.05x = 133,874,580,918.70
  5. Step 5: Solve for x
    x = 133,874,580,918.70/421,269.05
  6. Step 6: Final answer
    x = 317,788.79

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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.