Home / 221,408.85-332,113.28-109,106.40

Finding the Fourth Proportional to 221,408.85, 332,113.28 and 109,106.40

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Solution

The fourth proportional to 221,408.85, 332,113.28 and 109,106.40 is: 163,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,408.85 : 332,113.28 = 109,106.40 : x
  2. Step 2: Convert to fraction form
    221,408.85/332,113.28 = 109,106.40/x
  3. Step 3: Cross multiply
    221,408.85x = 332,113.28 × 109,106.40
  4. Step 4: Simplify right side
    221,408.85x = 36,235,683,827.46
  5. Step 5: Solve for x
    x = 36,235,683,827.46/221,408.85
  6. Step 6: Final answer
    x = 163,659.60

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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.