Home / 421,344.98-581,456.13-230,358.42

Finding the Fourth Proportional to 421,344.98, 581,456.13 and 230,358.42

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Solution

The fourth proportional to 421,344.98, 581,456.13 and 230,358.42 is: 317,894.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,344.98 : 581,456.13 = 230,358.42 : x
  2. Step 2: Convert to fraction form
    421,344.98/581,456.13 = 230,358.42/x
  3. Step 3: Cross multiply
    421,344.98x = 581,456.13 × 230,358.42
  4. Step 4: Simplify right side
    421,344.98x = 133,943,315,406.12
  5. Step 5: Solve for x
    x = 133,943,315,406.12/421,344.98
  6. Step 6: Final answer
    x = 317,894.65

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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.