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Finding the Fourth Proportional to 148,808.40, 223,212.60 and 92,821.20

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Solution

The fourth proportional to 148,808.40, 223,212.60 and 92,821.20 is: 139,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,808.40 : 223,212.60 = 92,821.20 : x
  2. Step 2: Convert to fraction form
    148,808.40/223,212.60 = 92,821.20/x
  3. Step 3: Cross multiply
    148,808.40x = 223,212.60 × 92,821.20
  4. Step 4: Simplify right side
    148,808.40x = 20,718,861,387.12
  5. Step 5: Solve for x
    x = 20,718,861,387.12/148,808.40
  6. Step 6: Final answer
    x = 139,231.80

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1.5x scale

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.