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Finding the Fourth Proportional to 298,051.60, 447,077.40 and 98,402.80

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Solution

The fourth proportional to 298,051.60, 447,077.40 and 98,402.80 is: 147,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,051.60 : 447,077.40 = 98,402.80 : x
  2. Step 2: Convert to fraction form
    298,051.60/447,077.40 = 98,402.80/x
  3. Step 3: Cross multiply
    298,051.60x = 447,077.40 × 98,402.80
  4. Step 4: Simplify right side
    298,051.60x = 43,993,667,976.72
  5. Step 5: Solve for x
    x = 43,993,667,976.72/298,051.60
  6. Step 6: Final answer
    x = 147,604.20

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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.