Home / 485,982.08-729,025.04-205,527.68

Finding the Fourth Proportional to 485,982.08, 729,025.04 and 205,527.68

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Solution

The fourth proportional to 485,982.08, 729,025.04 and 205,527.68 is: 308,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,982.08 : 729,025.04 = 205,527.68 : x
  2. Step 2: Convert to fraction form
    485,982.08/729,025.04 = 205,527.68/x
  3. Step 3: Cross multiply
    485,982.08x = 729,025.04 × 205,527.68
  4. Step 4: Simplify right side
    485,982.08x = 149,834,825,133.11
  5. Step 5: Solve for x
    x = 149,834,825,133.11/485,982.08
  6. Step 6: Final answer
    x = 308,313.48

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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.