Home / 388,278.06-535,898.03-235,399.57

Finding the Fourth Proportional to 388,278.06, 535,898.03 and 235,399.57

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Solution

The fourth proportional to 388,278.06, 535,898.03 and 235,399.57 is: 324,896.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,278.06 : 535,898.03 = 235,399.57 : x
  2. Step 2: Convert to fraction form
    388,278.06/535,898.03 = 235,399.57/x
  3. Step 3: Cross multiply
    388,278.06x = 535,898.03 × 235,399.57
  4. Step 4: Simplify right side
    388,278.06x = 126,150,165,825.85
  5. Step 5: Solve for x
    x = 126,150,165,825.85/388,278.06
  6. Step 6: Final answer
    x = 324,896.46

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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.