Home / 307,716.13-424,688.40-171,778.29

Finding the Fourth Proportional to 307,716.13, 424,688.40 and 171,778.29

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Solution

The fourth proportional to 307,716.13, 424,688.40 and 171,778.29 is: 237,076.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,716.13 : 424,688.40 = 171,778.29 : x
  2. Step 2: Convert to fraction form
    307,716.13/424,688.40 = 171,778.29/x
  3. Step 3: Cross multiply
    307,716.13x = 424,688.40 × 171,778.29
  4. Step 4: Simplify right side
    307,716.13x = 72,952,245,542.25
  5. Step 5: Solve for x
    x = 72,952,245,542.25/307,716.13
  6. Step 6: Final answer
    x = 237,076.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.