Home / 421,336.09-581,443.77-230,349.43

Finding the Fourth Proportional to 421,336.09, 581,443.77 and 230,349.43

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Solution

The fourth proportional to 421,336.09, 581,443.77 and 230,349.43 is: 317,882.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,336.09 : 581,443.77 = 230,349.43 : x
  2. Step 2: Convert to fraction form
    421,336.09/581,443.77 = 230,349.43/x
  3. Step 3: Cross multiply
    421,336.09x = 581,443.77 × 230,349.43
  4. Step 4: Simplify right side
    421,336.09x = 133,935,240,996.55
  5. Step 5: Solve for x
    x = 133,935,240,996.55/421,336.09
  6. Step 6: Final answer
    x = 317,882.19

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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.