Home / 220,963.77-304,921.39-135,066.57

Finding the Fourth Proportional to 220,963.77, 304,921.39 and 135,066.57

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Solution

The fourth proportional to 220,963.77, 304,921.39 and 135,066.57 is: 186,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,963.77 : 304,921.39 = 135,066.57 : x
  2. Step 2: Convert to fraction form
    220,963.77/304,921.39 = 135,066.57/x
  3. Step 3: Cross multiply
    220,963.77x = 304,921.39 × 135,066.57
  4. Step 4: Simplify right side
    220,963.77x = 41,184,684,742.33
  5. Step 5: Solve for x
    x = 41,184,684,742.33/220,963.77
  6. Step 6: Final answer
    x = 186,386.60

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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.