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Finding the Fourth Proportional to 303,512.70, 455,269.05 and 161,795.10

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Solution

The fourth proportional to 303,512.70, 455,269.05 and 161,795.10 is: 242,692.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,512.70 : 455,269.05 = 161,795.10 : x
  2. Step 2: Convert to fraction form
    303,512.70/455,269.05 = 161,795.10/x
  3. Step 3: Cross multiply
    303,512.70x = 455,269.05 × 161,795.10
  4. Step 4: Simplify right side
    303,512.70x = 73,660,301,471.66
  5. Step 5: Solve for x
    x = 73,660,301,471.66/303,512.70
  6. Step 6: Final answer
    x = 242,692.65

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Similar ratio
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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.