Home / 272,218.80-408,274.92-258,716.46

Finding the Fourth Proportional to 272,218.80, 408,274.92 and 258,716.46

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Solution

The fourth proportional to 272,218.80, 408,274.92 and 258,716.46 is: 388,024.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,218.80 : 408,274.92 = 258,716.46 : x
  2. Step 2: Convert to fraction form
    272,218.80/408,274.92 = 258,716.46/x
  3. Step 3: Cross multiply
    272,218.80x = 408,274.92 × 258,716.46
  4. Step 4: Simplify right side
    272,218.80x = 105,627,442,009.18
  5. Step 5: Solve for x
    x = 105,627,442,009.18/272,218.80
  6. Step 6: Final answer
    x = 388,024.05

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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.