Home / 421,239.42-581,310.36-230,253.57

Finding the Fourth Proportional to 421,239.42, 581,310.36 and 230,253.57

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Solution

The fourth proportional to 421,239.42, 581,310.36 and 230,253.57 is: 317,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,239.42 : 581,310.36 = 230,253.57 : x
  2. Step 2: Convert to fraction form
    421,239.42/581,310.36 = 230,253.57/x
  3. Step 3: Cross multiply
    421,239.42x = 581,310.36 × 230,253.57
  4. Step 4: Simplify right side
    421,239.42x = 133,848,785,667.99
  5. Step 5: Solve for x
    x = 133,848,785,667.99/421,239.42
  6. Step 6: Final answer
    x = 317,749.90

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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.