Home / 231,708.90-346,980.15-221,211.30

Finding the Fourth Proportional to 231,708.90, 346,980.15 and 221,211.30

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Solution

The fourth proportional to 231,708.90, 346,980.15 and 221,211.30 is: 331,260.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,708.90 : 346,980.15 = 221,211.30 : x
  2. Step 2: Convert to fraction form
    231,708.90/346,980.15 = 221,211.30/x
  3. Step 3: Cross multiply
    231,708.90x = 346,980.15 × 221,211.30
  4. Step 4: Simplify right side
    231,708.90x = 76,755,930,055.70
  5. Step 5: Solve for x
    x = 76,755,930,055.70/231,708.90
  6. Step 6: Final answer
    x = 331,260.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.