Home / 220,689.22-304,858.56-212,496.16

Finding the Fourth Proportional to 220,689.22, 304,858.56 and 212,496.16

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Solution

The fourth proportional to 220,689.22, 304,858.56 and 212,496.16 is: 293,540.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,689.22 : 304,858.56 = 212,496.16 : x
  2. Step 2: Convert to fraction form
    220,689.22/304,858.56 = 212,496.16/x
  3. Step 3: Cross multiply
    220,689.22x = 304,858.56 × 212,496.16
  4. Step 4: Simplify right side
    220,689.22x = 64,781,273,343.13
  5. Step 5: Solve for x
    x = 64,781,273,343.13/220,689.22
  6. Step 6: Final answer
    x = 293,540.72

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1.5x scale

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.