Home / 220,727.90-304,568.17-139,043.45

Finding the Fourth Proportional to 220,727.90, 304,568.17 and 139,043.45

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Solution

The fourth proportional to 220,727.90, 304,568.17 and 139,043.45 is: 191,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,727.90 : 304,568.17 = 139,043.45 : x
  2. Step 2: Convert to fraction form
    220,727.90/304,568.17 = 139,043.45/x
  3. Step 3: Cross multiply
    220,727.90x = 304,568.17 × 139,043.45
  4. Step 4: Simplify right side
    220,727.90x = 42,348,209,530.80
  5. Step 5: Solve for x
    x = 42,348,209,530.80/220,727.90
  6. Step 6: Final answer
    x = 191,857.07

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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.