Home / 421,198.37-581,233.69-230,211.91

Finding the Fourth Proportional to 421,198.37, 581,233.69 and 230,211.91

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Solution

The fourth proportional to 421,198.37, 581,233.69 and 230,211.91 is: 317,681.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,198.37 : 581,233.69 = 230,211.91 : x
  2. Step 2: Convert to fraction form
    421,198.37/581,233.69 = 230,211.91/x
  3. Step 3: Cross multiply
    421,198.37x = 581,233.69 × 230,211.91
  4. Step 4: Simplify right side
    421,198.37x = 133,806,917,931.25
  5. Step 5: Solve for x
    x = 133,806,917,931.25/421,198.37
  6. Step 6: Final answer
    x = 317,681.47

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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.