Home / 221,395.58-305,524.35-125,902.25

Finding the Fourth Proportional to 221,395.58, 305,524.35 and 125,902.25

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Solution

The fourth proportional to 221,395.58, 305,524.35 and 125,902.25 is: 173,744.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,395.58 : 305,524.35 = 125,902.25 : x
  2. Step 2: Convert to fraction form
    221,395.58/305,524.35 = 125,902.25/x
  3. Step 3: Cross multiply
    221,395.58x = 305,524.35 × 125,902.25
  4. Step 4: Simplify right side
    221,395.58x = 38,466,203,094.79
  5. Step 5: Solve for x
    x = 38,466,203,094.79/221,395.58
  6. Step 6: Final answer
    x = 173,744.22

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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.