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Finding the Fourth Proportional to 222,171.60, 333,257.40 and 142,455.45

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Solution

The fourth proportional to 222,171.60, 333,257.40 and 142,455.45 is: 213,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,171.60 : 333,257.40 = 142,455.45 : x
  2. Step 2: Convert to fraction form
    222,171.60/333,257.40 = 142,455.45/x
  3. Step 3: Cross multiply
    222,171.60x = 333,257.40 × 142,455.45
  4. Step 4: Simplify right side
    222,171.60x = 47,474,332,882.83
  5. Step 5: Solve for x
    x = 47,474,332,882.83/222,171.60
  6. Step 6: Final answer
    x = 213,683.18

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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.