Home / 259,130.88-388,411.20-101,329.92

Finding the Fourth Proportional to 259,130.88, 388,411.20 and 101,329.92

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Solution

The fourth proportional to 259,130.88, 388,411.20 and 101,329.92 is: 151,883.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,130.88 : 388,411.20 = 101,329.92 : x
  2. Step 2: Convert to fraction form
    259,130.88/388,411.20 = 101,329.92/x
  3. Step 3: Cross multiply
    259,130.88x = 388,411.20 × 101,329.92
  4. Step 4: Simplify right side
    259,130.88x = 39,357,675,823.10
  5. Step 5: Solve for x
    x = 39,357,675,823.10/259,130.88
  6. Step 6: Final answer
    x = 151,883.39

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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.