Home / 220,742.13-304,587.50-130,085.79

Finding the Fourth Proportional to 220,742.13, 304,587.50 and 130,085.79

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Solution

The fourth proportional to 220,742.13, 304,587.50 and 130,085.79 is: 179,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,742.13 : 304,587.50 = 130,085.79 : x
  2. Step 2: Convert to fraction form
    220,742.13/304,587.50 = 130,085.79/x
  3. Step 3: Cross multiply
    220,742.13x = 304,587.50 × 130,085.79
  4. Step 4: Simplify right side
    220,742.13x = 39,622,504,911.20
  5. Step 5: Solve for x
    x = 39,622,504,911.20/220,742.13
  6. Step 6: Final answer
    x = 179,496.80

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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.