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Finding the Fourth Proportional to 279,200.40, 418,800.60 and 110,760.90

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Solution

The fourth proportional to 279,200.40, 418,800.60 and 110,760.90 is: 166,141.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,200.40 : 418,800.60 = 110,760.90 : x
  2. Step 2: Convert to fraction form
    279,200.40/418,800.60 = 110,760.90/x
  3. Step 3: Cross multiply
    279,200.40x = 418,800.60 × 110,760.90
  4. Step 4: Simplify right side
    279,200.40x = 46,386,731,376.54
  5. Step 5: Solve for x
    x = 46,386,731,376.54/279,200.40
  6. Step 6: Final answer
    x = 166,141.35

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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.