Home / 388,983.22-536,839.77-225,675.70

Finding the Fourth Proportional to 388,983.22, 536,839.77 and 225,675.70

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Solution

The fourth proportional to 388,983.22, 536,839.77 and 225,675.70 is: 311,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,983.22 : 536,839.77 = 225,675.70 : x
  2. Step 2: Convert to fraction form
    388,983.22/536,839.77 = 225,675.70/x
  3. Step 3: Cross multiply
    388,983.22x = 536,839.77 × 225,675.70
  4. Step 4: Simplify right side
    388,983.22x = 121,151,690,882.59
  5. Step 5: Solve for x
    x = 121,151,690,882.59/388,983.22
  6. Step 6: Final answer
    x = 311,457.37

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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.