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Finding the Fourth Proportional to 220,801.60, 331,202.40 and 185,372.20

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Solution

The fourth proportional to 220,801.60, 331,202.40 and 185,372.20 is: 278,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,801.60 : 331,202.40 = 185,372.20 : x
  2. Step 2: Convert to fraction form
    220,801.60/331,202.40 = 185,372.20/x
  3. Step 3: Cross multiply
    220,801.60x = 331,202.40 × 185,372.20
  4. Step 4: Simplify right side
    220,801.60x = 61,395,717,533.28
  5. Step 5: Solve for x
    x = 61,395,717,533.28/220,801.60
  6. Step 6: Final answer
    x = 278,058.30

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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.