Home / 388,276.43-535,716.86-227,171.07

Finding the Fourth Proportional to 388,276.43, 535,716.86 and 227,171.07

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Solution

The fourth proportional to 388,276.43, 535,716.86 and 227,171.07 is: 313,434.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,276.43 : 535,716.86 = 227,171.07 : x
  2. Step 2: Convert to fraction form
    388,276.43/535,716.86 = 227,171.07/x
  3. Step 3: Cross multiply
    388,276.43x = 535,716.86 × 227,171.07
  4. Step 4: Simplify right side
    388,276.43x = 121,699,371,167.39
  5. Step 5: Solve for x
    x = 121,699,371,167.39/388,276.43
  6. Step 6: Final answer
    x = 313,434.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.