Home / 351,918.52-485,533.38-198,941.92

Finding the Fourth Proportional to 351,918.52, 485,533.38 and 198,941.92

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Solution

The fourth proportional to 351,918.52, 485,533.38 and 198,941.92 is: 274,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,918.52 : 485,533.38 = 198,941.92 : x
  2. Step 2: Convert to fraction form
    351,918.52/485,533.38 = 198,941.92/x
  3. Step 3: Cross multiply
    351,918.52x = 485,533.38 × 198,941.92
  4. Step 4: Simplify right side
    351,918.52x = 96,592,942,841.29
  5. Step 5: Solve for x
    x = 96,592,942,841.29/351,918.52
  6. Step 6: Final answer
    x = 274,475.30

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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.