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Finding the Fourth Proportional to 165,293.80, 247,940.70 and 98,938.60

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Solution

The fourth proportional to 165,293.80, 247,940.70 and 98,938.60 is: 148,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,293.80 : 247,940.70 = 98,938.60 : x
  2. Step 2: Convert to fraction form
    165,293.80/247,940.70 = 98,938.60/x
  3. Step 3: Cross multiply
    165,293.80x = 247,940.70 × 98,938.60
  4. Step 4: Simplify right side
    165,293.80x = 24,530,905,741.02
  5. Step 5: Solve for x
    x = 24,530,905,741.02/165,293.80
  6. Step 6: Final answer
    x = 148,407.90

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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.