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Finding the Fourth Proportional to 372,945.69, 515,227.50 and 301,201.20

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Solution

The fourth proportional to 372,945.69, 515,227.50 and 301,201.20 is: 416,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,945.69 : 515,227.50 = 301,201.20 : x
  2. Step 2: Convert to fraction form
    372,945.69/515,227.50 = 301,201.20/x
  3. Step 3: Cross multiply
    372,945.69x = 515,227.50 × 301,201.20
  4. Step 4: Simplify right side
    372,945.69x = 155,187,141,273
  5. Step 5: Solve for x
    x = 155,187,141,273/372,945.69
  6. Step 6: Final answer
    x = 416,111.90

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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.