Home / 259,031.28-388,316.40-101,223.84

Finding the Fourth Proportional to 259,031.28, 388,316.40 and 101,223.84

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Solution

The fourth proportional to 259,031.28, 388,316.40 and 101,223.84 is: 151,745.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,031.28 : 388,316.40 = 101,223.84 : x
  2. Step 2: Convert to fraction form
    259,031.28/388,316.40 = 101,223.84/x
  3. Step 3: Cross multiply
    259,031.28x = 388,316.40 × 101,223.84
  4. Step 4: Simplify right side
    259,031.28x = 39,306,877,142.98
  5. Step 5: Solve for x
    x = 39,306,877,142.98/259,031.28
  6. Step 6: Final answer
    x = 151,745.68

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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.