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Finding the Fourth Proportional to 297,286.71, 445,945.10 and 84,070.00

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Solution

The fourth proportional to 297,286.71, 445,945.10 and 84,070.00 is: 126,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,286.71 : 445,945.10 = 84,070.00 : x
  2. Step 2: Convert to fraction form
    297,286.71/445,945.10 = 84,070.00/x
  3. Step 3: Cross multiply
    297,286.71x = 445,945.10 × 84,070.00
  4. Step 4: Simplify right side
    297,286.71x = 37,490,604,694.08
  5. Step 5: Solve for x
    x = 37,490,604,694.08/297,286.71
  6. Step 6: Final answer
    x = 126,109.25

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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.