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Finding the Fourth Proportional to 221,624.14, 332,436.20 and 55,412.14

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Solution

The fourth proportional to 221,624.14, 332,436.20 and 55,412.14 is: 83,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,624.14 : 332,436.20 = 55,412.14 : x
  2. Step 2: Convert to fraction form
    221,624.14/332,436.20 = 55,412.14/x
  3. Step 3: Cross multiply
    221,624.14x = 332,436.20 × 55,412.14
  4. Step 4: Simplify right side
    221,624.14x = 18,421,000,978.41
  5. Step 5: Solve for x
    x = 18,421,000,978.41/221,624.14
  6. Step 6: Final answer
    x = 83,118.21

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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.