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Finding the Fourth Proportional to 445,030.94, 667,610.03 and 137,309.00

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Solution

The fourth proportional to 445,030.94, 667,610.03 and 137,309.00 is: 205,983.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,030.94 : 667,610.03 = 137,309.00 : x
  2. Step 2: Convert to fraction form
    445,030.94/667,610.03 = 137,309.00/x
  3. Step 3: Cross multiply
    445,030.94x = 667,610.03 × 137,309.00
  4. Step 4: Simplify right side
    445,030.94x = 91,668,862,614.49
  5. Step 5: Solve for x
    x = 91,668,862,614.49/445,030.94
  6. Step 6: Final answer
    x = 205,983.12

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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.