Home / 220,301.46-304,015.14-129,656.79

Finding the Fourth Proportional to 220,301.46, 304,015.14 and 129,656.79

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Solution

The fourth proportional to 220,301.46, 304,015.14 and 129,656.79 is: 178,925.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,301.46 : 304,015.14 = 129,656.79 : x
  2. Step 2: Convert to fraction form
    220,301.46/304,015.14 = 129,656.79/x
  3. Step 3: Cross multiply
    220,301.46x = 304,015.14 × 129,656.79
  4. Step 4: Simplify right side
    220,301.46x = 39,417,627,163.80
  5. Step 5: Solve for x
    x = 39,417,627,163.80/220,301.46
  6. Step 6: Final answer
    x = 178,925.86

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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.