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Finding the Fourth Proportional to 323,602.27, 485,022.16 and 145,901.23

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Solution

The fourth proportional to 323,602.27, 485,022.16 and 145,901.23 is: 218,679.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,602.27 : 485,022.16 = 145,901.23 : x
  2. Step 2: Convert to fraction form
    323,602.27/485,022.16 = 145,901.23/x
  3. Step 3: Cross multiply
    323,602.27x = 485,022.16 × 145,901.23
  4. Step 4: Simplify right side
    323,602.27x = 70,765,326,566.64
  5. Step 5: Solve for x
    x = 70,765,326,566.64/323,602.27
  6. Step 6: Final answer
    x = 218,679.95

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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.