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Finding the Fourth Proportional to 221,390.70, 332,134.65 and 109,124.70

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Solution

The fourth proportional to 221,390.70, 332,134.65 and 109,124.70 is: 163,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,390.70 : 332,134.65 = 109,124.70 : x
  2. Step 2: Convert to fraction form
    221,390.70/332,134.65 = 109,124.70/x
  3. Step 3: Cross multiply
    221,390.70x = 332,134.65 × 109,124.70
  4. Step 4: Simplify right side
    221,390.70x = 36,244,094,040.86
  5. Step 5: Solve for x
    x = 36,244,094,040.86/221,390.70
  6. Step 6: Final answer
    x = 163,711.01

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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.