Home / 259,123.48-388,718.03-101,331.43

Finding the Fourth Proportional to 259,123.48, 388,718.03 and 101,331.43

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Solution

The fourth proportional to 259,123.48, 388,718.03 and 101,331.43 is: 152,009.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,123.48 : 388,718.03 = 101,331.43 : x
  2. Step 2: Convert to fraction form
    259,123.48/388,718.03 = 101,331.43/x
  3. Step 3: Cross multiply
    259,123.48x = 388,718.03 × 101,331.43
  4. Step 4: Simplify right side
    259,123.48x = 39,389,353,128.22
  5. Step 5: Solve for x
    x = 39,389,353,128.22/259,123.48
  6. Step 6: Final answer
    x = 152,009.97

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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.