Home / 315,121.68-434,869.27-171,884.80

Finding the Fourth Proportional to 315,121.68, 434,869.27 and 171,884.80

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Solution

The fourth proportional to 315,121.68, 434,869.27 and 171,884.80 is: 237,201.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,121.68 : 434,869.27 = 171,884.80 : x
  2. Step 2: Convert to fraction form
    315,121.68/434,869.27 = 171,884.80/x
  3. Step 3: Cross multiply
    315,121.68x = 434,869.27 × 171,884.80
  4. Step 4: Simplify right side
    315,121.68x = 74,747,417,500.10
  5. Step 5: Solve for x
    x = 74,747,417,500.10/315,121.68
  6. Step 6: Final answer
    x = 237,201.76

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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.