Home / 220,987.53-304,954.71-135,090.36

Finding the Fourth Proportional to 220,987.53, 304,954.71 and 135,090.36

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Solution

The fourth proportional to 220,987.53, 304,954.71 and 135,090.36 is: 186,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,987.53 : 304,954.71 = 135,090.36 : x
  2. Step 2: Convert to fraction form
    220,987.53/304,954.71 = 135,090.36/x
  3. Step 3: Cross multiply
    220,987.53x = 304,954.71 × 135,090.36
  4. Step 4: Simplify right side
    220,987.53x = 41,196,441,557.60
  5. Step 5: Solve for x
    x = 41,196,441,557.60/220,987.53
  6. Step 6: Final answer
    x = 186,419.76

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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.