Home / 378,425.48-522,237.67-231,274.18

Finding the Fourth Proportional to 378,425.48, 522,237.67 and 231,274.18

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Solution

The fourth proportional to 378,425.48, 522,237.67 and 231,274.18 is: 319,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,425.48 : 522,237.67 = 231,274.18 : x
  2. Step 2: Convert to fraction form
    378,425.48/522,237.67 = 231,274.18/x
  3. Step 3: Cross multiply
    378,425.48x = 522,237.67 × 231,274.18
  4. Step 4: Simplify right side
    378,425.48x = 120,780,086,283.17
  5. Step 5: Solve for x
    x = 120,780,086,283.17/378,425.48
  6. Step 6: Final answer
    x = 319,164.79

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1.5x scale

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.