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Finding the Fourth Proportional to 221,858.90, 332,788.35 and 133,066.70

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Solution

The fourth proportional to 221,858.90, 332,788.35 and 133,066.70 is: 199,600.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,858.90 : 332,788.35 = 133,066.70 : x
  2. Step 2: Convert to fraction form
    221,858.90/332,788.35 = 133,066.70/x
  3. Step 3: Cross multiply
    221,858.90x = 332,788.35 × 133,066.70
  4. Step 4: Simplify right side
    221,858.90x = 44,283,047,532.95
  5. Step 5: Solve for x
    x = 44,283,047,532.95/221,858.90
  6. Step 6: Final answer
    x = 199,600.05

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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.