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Finding the Fourth Proportional to 220,507.20, 330,420.60 and 164,082.60

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Solution

The fourth proportional to 220,507.20, 330,420.60 and 164,082.60 is: 245,870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,507.20 : 330,420.60 = 164,082.60 : x
  2. Step 2: Convert to fraction form
    220,507.20/330,420.60 = 164,082.60/x
  3. Step 3: Cross multiply
    220,507.20x = 330,420.60 × 164,082.60
  4. Step 4: Simplify right side
    220,507.20x = 54,216,271,141.56
  5. Step 5: Solve for x
    x = 54,216,271,141.56/220,507.20
  6. Step 6: Final answer
    x = 245,870.75

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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.