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Finding the Fourth Proportional to 490,785.82, 736,179.90 and 149,232.40

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Solution

The fourth proportional to 490,785.82, 736,179.90 and 149,232.40 is: 223,848.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,785.82 : 736,179.90 = 149,232.40 : x
  2. Step 2: Convert to fraction form
    490,785.82/736,179.90 = 149,232.40/x
  3. Step 3: Cross multiply
    490,785.82x = 736,179.90 × 149,232.40
  4. Step 4: Simplify right side
    490,785.82x = 109,861,893,308.76
  5. Step 5: Solve for x
    x = 109,861,893,308.76/490,785.82
  6. Step 6: Final answer
    x = 223,848.96

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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.