Home / 421,379.14-581,503.26-230,392.66

Finding the Fourth Proportional to 421,379.14, 581,503.26 and 230,392.66

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Solution

The fourth proportional to 421,379.14, 581,503.26 and 230,392.66 is: 317,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,379.14 : 581,503.26 = 230,392.66 : x
  2. Step 2: Convert to fraction form
    421,379.14/581,503.26 = 230,392.66/x
  3. Step 3: Cross multiply
    421,379.14x = 581,503.26 × 230,392.66
  4. Step 4: Simplify right side
    421,379.14x = 133,974,082,870.07
  5. Step 5: Solve for x
    x = 133,974,082,870.07/421,379.14
  6. Step 6: Final answer
    x = 317,941.90

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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.