Home / 384,982.64-531,279.41-212,891.66

Finding the Fourth Proportional to 384,982.64, 531,279.41 and 212,891.66

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Solution

The fourth proportional to 384,982.64, 531,279.41 and 212,891.66 is: 293,792.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,982.64 : 531,279.41 = 212,891.66 : x
  2. Step 2: Convert to fraction form
    384,982.64/531,279.41 = 212,891.66/x
  3. Step 3: Cross multiply
    384,982.64x = 531,279.41 × 212,891.66
  4. Step 4: Simplify right side
    384,982.64x = 113,104,955,518.72
  5. Step 5: Solve for x
    x = 113,104,955,518.72/384,982.64
  6. Step 6: Final answer
    x = 293,792.35

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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.