Home / 220,806.10-304,610.52-130,100.14

Finding the Fourth Proportional to 220,806.10, 304,610.52 and 130,100.14

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Solution

The fourth proportional to 220,806.10, 304,610.52 and 130,100.14 is: 179,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,806.10 : 304,610.52 = 130,100.14 : x
  2. Step 2: Convert to fraction form
    220,806.10/304,610.52 = 130,100.14/x
  3. Step 3: Cross multiply
    220,806.10x = 304,610.52 × 130,100.14
  4. Step 4: Simplify right side
    220,806.10x = 39,629,871,297.47
  5. Step 5: Solve for x
    x = 39,629,871,297.47/220,806.10
  6. Step 6: Final answer
    x = 179,478.15

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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.