Home / 209,708.64-289,396.44-114,215.04

Finding the Fourth Proportional to 209,708.64, 289,396.44 and 114,215.04

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Solution

The fourth proportional to 209,708.64, 289,396.44 and 114,215.04 is: 157,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,708.64 : 289,396.44 = 114,215.04 : x
  2. Step 2: Convert to fraction form
    209,708.64/289,396.44 = 114,215.04/x
  3. Step 3: Cross multiply
    209,708.64x = 289,396.44 × 114,215.04
  4. Step 4: Simplify right side
    209,708.64x = 33,053,425,970.46
  5. Step 5: Solve for x
    x = 33,053,425,970.46/209,708.64
  6. Step 6: Final answer
    x = 157,615.95

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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.