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Finding the Fourth Proportional to 619,506.60, 929,041.20 and 220,160.40

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Solution

The fourth proportional to 619,506.60, 929,041.20 and 220,160.40 is: 330,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,506.60 : 929,041.20 = 220,160.40 : x
  2. Step 2: Convert to fraction form
    619,506.60/929,041.20 = 220,160.40/x
  3. Step 3: Cross multiply
    619,506.60x = 929,041.20 × 220,160.40
  4. Step 4: Simplify right side
    619,506.60x = 204,538,082,208.48
  5. Step 5: Solve for x
    x = 204,538,082,208.48/619,506.60
  6. Step 6: Final answer
    x = 330,162.88

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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.