Home / 388,649.26-581,936.28-228,591.64

Finding the Fourth Proportional to 388,649.26, 581,936.28 and 228,591.64

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Solution

The fourth proportional to 388,649.26, 581,936.28 and 228,591.64 is: 342,277.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,649.26 : 581,936.28 = 228,591.64 : x
  2. Step 2: Convert to fraction form
    388,649.26/581,936.28 = 228,591.64/x
  3. Step 3: Cross multiply
    388,649.26x = 581,936.28 × 228,591.64
  4. Step 4: Simplify right side
    388,649.26x = 133,025,768,620.70
  5. Step 5: Solve for x
    x = 133,025,768,620.70/388,649.26
  6. Step 6: Final answer
    x = 342,277.17

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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.