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Finding the Fourth Proportional to 221,460.40, 332,336.40 and 126,690.40

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Solution

The fourth proportional to 221,460.40, 332,336.40 and 126,690.40 is: 190,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,460.40 : 332,336.40 = 126,690.40 : x
  2. Step 2: Convert to fraction form
    221,460.40/332,336.40 = 126,690.40/x
  3. Step 3: Cross multiply
    221,460.40x = 332,336.40 × 126,690.40
  4. Step 4: Simplify right side
    221,460.40x = 42,103,831,450.56
  5. Step 5: Solve for x
    x = 42,103,831,450.56/221,460.40
  6. Step 6: Final answer
    x = 190,119.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.