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Finding the Fourth Proportional to 298,157.52, 447,141.44 and 98,440.72

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Solution

The fourth proportional to 298,157.52, 447,141.44 and 98,440.72 is: 147,629.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,157.52 : 447,141.44 = 98,440.72 : x
  2. Step 2: Convert to fraction form
    298,157.52/447,141.44 = 98,440.72/x
  3. Step 3: Cross multiply
    298,157.52x = 447,141.44 × 98,440.72
  4. Step 4: Simplify right side
    298,157.52x = 44,016,925,295.44
  5. Step 5: Solve for x
    x = 44,016,925,295.44/298,157.52
  6. Step 6: Final answer
    x = 147,629.77

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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.