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Finding the Fourth Proportional to 310,230.80, 465,346.20 and 203,942.60

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Solution

The fourth proportional to 310,230.80, 465,346.20 and 203,942.60 is: 305,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,230.80 : 465,346.20 = 203,942.60 : x
  2. Step 2: Convert to fraction form
    310,230.80/465,346.20 = 203,942.60/x
  3. Step 3: Cross multiply
    310,230.80x = 465,346.20 × 203,942.60
  4. Step 4: Simplify right side
    310,230.80x = 94,903,913,928.12
  5. Step 5: Solve for x
    x = 94,903,913,928.12/310,230.80
  6. Step 6: Final answer
    x = 305,913.90

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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.