Home / 239,875.50-331,057.38-139,273.50

Finding the Fourth Proportional to 239,875.50, 331,057.38 and 139,273.50

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Solution

The fourth proportional to 239,875.50, 331,057.38 and 139,273.50 is: 192,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,875.50 : 331,057.38 = 139,273.50 : x
  2. Step 2: Convert to fraction form
    239,875.50/331,057.38 = 139,273.50/x
  3. Step 3: Cross multiply
    239,875.50x = 331,057.38 × 139,273.50
  4. Step 4: Simplify right side
    239,875.50x = 46,107,520,013.43
  5. Step 5: Solve for x
    x = 46,107,520,013.43/239,875.50
  6. Step 6: Final answer
    x = 192,214.38

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1.5x scale

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.