Home / 259,431.68-388,520.48-214,729.36

Finding the Fourth Proportional to 259,431.68, 388,520.48 and 214,729.36

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Solution

The fourth proportional to 259,431.68, 388,520.48 and 214,729.36 is: 321,575.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,431.68 : 388,520.48 = 214,729.36 : x
  2. Step 2: Convert to fraction form
    259,431.68/388,520.48 = 214,729.36/x
  3. Step 3: Cross multiply
    259,431.68x = 388,520.48 × 214,729.36
  4. Step 4: Simplify right side
    259,431.68x = 83,426,754,017.29
  5. Step 5: Solve for x
    x = 83,426,754,017.29/259,431.68
  6. Step 6: Final answer
    x = 321,575.04

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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.