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Finding the Fourth Proportional to 303,684.37, 455,802.81 and 161,649.05

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Solution

The fourth proportional to 303,684.37, 455,802.81 and 161,649.05 is: 242,620.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,684.37 : 455,802.81 = 161,649.05 : x
  2. Step 2: Convert to fraction form
    303,684.37/455,802.81 = 161,649.05/x
  3. Step 3: Cross multiply
    303,684.37x = 455,802.81 × 161,649.05
  4. Step 4: Simplify right side
    303,684.37x = 73,680,088,944.82
  5. Step 5: Solve for x
    x = 73,680,088,944.82/303,684.37
  6. Step 6: Final answer
    x = 242,620.62

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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.