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Finding the Fourth Proportional to 202,225.20, 303,402.60 and 135,740.40

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Solution

The fourth proportional to 202,225.20, 303,402.60 and 135,740.40 is: 203,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,225.20 : 303,402.60 = 135,740.40 : x
  2. Step 2: Convert to fraction form
    202,225.20/303,402.60 = 135,740.40/x
  3. Step 3: Cross multiply
    202,225.20x = 303,402.60 × 135,740.40
  4. Step 4: Simplify right side
    202,225.20x = 41,183,990,285.04
  5. Step 5: Solve for x
    x = 41,183,990,285.04/202,225.20
  6. Step 6: Final answer
    x = 203,654.10

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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.