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Finding the Fourth Proportional to 303,513.70, 455,270.55 and 161,796.10

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Solution

The fourth proportional to 303,513.70, 455,270.55 and 161,796.10 is: 242,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,513.70 : 455,270.55 = 161,796.10 : x
  2. Step 2: Convert to fraction form
    303,513.70/455,270.55 = 161,796.10/x
  3. Step 3: Cross multiply
    303,513.70x = 455,270.55 × 161,796.10
  4. Step 4: Simplify right side
    303,513.70x = 73,660,999,434.86
  5. Step 5: Solve for x
    x = 73,660,999,434.86/303,513.70
  6. Step 6: Final answer
    x = 242,694.15

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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.