Home / 220,876.03-304,800.85-134,978.79

Finding the Fourth Proportional to 220,876.03, 304,800.85 and 134,978.79

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Solution

The fourth proportional to 220,876.03, 304,800.85 and 134,978.79 is: 186,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,876.03 : 304,800.85 = 134,978.79 : x
  2. Step 2: Convert to fraction form
    220,876.03/304,800.85 = 134,978.79/x
  3. Step 3: Cross multiply
    220,876.03x = 304,800.85 × 134,978.79
  4. Step 4: Simplify right side
    220,876.03x = 41,141,649,923.97
  5. Step 5: Solve for x
    x = 41,141,649,923.97/220,876.03
  6. Step 6: Final answer
    x = 186,265.80

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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.