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Finding the Fourth Proportional to 287,202.60, 396,392.74 and 166,343.85

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Solution

The fourth proportional to 287,202.60, 396,392.74 and 166,343.85 is: 229,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,202.60 : 396,392.74 = 166,343.85 : x
  2. Step 2: Convert to fraction form
    287,202.60/396,392.74 = 166,343.85/x
  3. Step 3: Cross multiply
    287,202.60x = 396,392.74 × 166,343.85
  4. Step 4: Simplify right side
    287,202.60x = 65,937,495,182.64
  5. Step 5: Solve for x
    x = 65,937,495,182.64/287,202.60
  6. Step 6: Final answer
    x = 229,585.30

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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.