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Finding the Fourth Proportional to 303,486.70, 455,230.05 and 161,769.10

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Solution

The fourth proportional to 303,486.70, 455,230.05 and 161,769.10 is: 242,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,486.70 : 455,230.05 = 161,769.10 : x
  2. Step 2: Convert to fraction form
    303,486.70/455,230.05 = 161,769.10/x
  3. Step 3: Cross multiply
    303,486.70x = 455,230.05 × 161,769.10
  4. Step 4: Simplify right side
    303,486.70x = 73,642,155,481.46
  5. Step 5: Solve for x
    x = 73,642,155,481.46/303,486.70
  6. Step 6: Final answer
    x = 242,653.65

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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.