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Finding the Fourth Proportional to 234,066.60, 322,738.29 and 221,454.90

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Solution

The fourth proportional to 234,066.60, 322,738.29 and 221,454.90 is: 305,348.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,066.60 : 322,738.29 = 221,454.90 : x
  2. Step 2: Convert to fraction form
    234,066.60/322,738.29 = 221,454.90/x
  3. Step 3: Cross multiply
    234,066.60x = 322,738.29 × 221,454.90
  4. Step 4: Simplify right side
    234,066.60x = 71,471,975,738.12
  5. Step 5: Solve for x
    x = 71,471,975,738.12/234,066.60
  6. Step 6: Final answer
    x = 305,348.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.