Home / 421,279.88-581,366.30-230,294.04

Finding the Fourth Proportional to 421,279.88, 581,366.30 and 230,294.04

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Solution

The fourth proportional to 421,279.88, 581,366.30 and 230,294.04 is: 317,805.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,279.88 : 581,366.30 = 230,294.04 : x
  2. Step 2: Convert to fraction form
    421,279.88/581,366.30 = 230,294.04/x
  3. Step 3: Cross multiply
    421,279.88x = 581,366.30 × 230,294.04
  4. Step 4: Simplify right side
    421,279.88x = 133,885,193,946.85
  5. Step 5: Solve for x
    x = 133,885,193,946.85/421,279.88
  6. Step 6: Final answer
    x = 317,805.81

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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.