Home / 221,235.85-305,331.69-125,756.90

Finding the Fourth Proportional to 221,235.85, 305,331.69 and 125,756.90

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Solution

The fourth proportional to 221,235.85, 305,331.69 and 125,756.90 is: 173,559.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,235.85 : 305,331.69 = 125,756.90 : x
  2. Step 2: Convert to fraction form
    221,235.85/305,331.69 = 125,756.90/x
  3. Step 3: Cross multiply
    221,235.85x = 305,331.69 × 125,756.90
  4. Step 4: Simplify right side
    221,235.85x = 38,397,564,650.72
  5. Step 5: Solve for x
    x = 38,397,564,650.72/221,235.85
  6. Step 6: Final answer
    x = 173,559.42

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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.