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Finding the Fourth Proportional to 221,685.40, 332,528.10 and 155,200.60

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Solution

The fourth proportional to 221,685.40, 332,528.10 and 155,200.60 is: 232,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,685.40 : 332,528.10 = 155,200.60 : x
  2. Step 2: Convert to fraction form
    221,685.40/332,528.10 = 155,200.60/x
  3. Step 3: Cross multiply
    221,685.40x = 332,528.10 × 155,200.60
  4. Step 4: Simplify right side
    221,685.40x = 51,608,560,636.86
  5. Step 5: Solve for x
    x = 51,608,560,636.86/221,685.40
  6. Step 6: Final answer
    x = 232,800.90

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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.