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Finding the Fourth Proportional to 303,665.93, 455,775.30 and 161,630.45

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Solution

The fourth proportional to 303,665.93, 455,775.30 and 161,630.45 is: 242,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,665.93 : 455,775.30 = 161,630.45 : x
  2. Step 2: Convert to fraction form
    303,665.93/455,775.30 = 161,630.45/x
  3. Step 3: Cross multiply
    303,665.93x = 455,775.30 × 161,630.45
  4. Step 4: Simplify right side
    303,665.93x = 73,667,166,837.89
  5. Step 5: Solve for x
    x = 73,667,166,837.89/303,665.93
  6. Step 6: Final answer
    x = 242,592.80

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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.