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Finding the Fourth Proportional to 303,666.05, 455,775.54 and 161,630.63

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Solution

The fourth proportional to 303,666.05, 455,775.54 and 161,630.63 is: 242,593.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,666.05 : 455,775.54 = 161,630.63 : x
  2. Step 2: Convert to fraction form
    303,666.05/455,775.54 = 161,630.63/x
  3. Step 3: Cross multiply
    303,666.05x = 455,775.54 × 161,630.63
  4. Step 4: Simplify right side
    303,666.05x = 73,667,287,668.79
  5. Step 5: Solve for x
    x = 73,667,287,668.79/303,666.05
  6. Step 6: Final answer
    x = 242,593.10

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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.