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Finding the Fourth Proportional to 164,806.60, 247,209.90 and 40,147.60

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Solution

The fourth proportional to 164,806.60, 247,209.90 and 40,147.60 is: 60,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,806.60 : 247,209.90 = 40,147.60 : x
  2. Step 2: Convert to fraction form
    164,806.60/247,209.90 = 40,147.60/x
  3. Step 3: Cross multiply
    164,806.60x = 247,209.90 × 40,147.60
  4. Step 4: Simplify right side
    164,806.60x = 9,924,884,181.24
  5. Step 5: Solve for x
    x = 9,924,884,181.24/164,806.60
  6. Step 6: Final answer
    x = 60,221.40

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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.