Home / 351,547.20-485,164.98-198,613.44

Finding the Fourth Proportional to 351,547.20, 485,164.98 and 198,613.44

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Solution

The fourth proportional to 351,547.20, 485,164.98 and 198,613.44 is: 274,103.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,547.20 : 485,164.98 = 198,613.44 : x
  2. Step 2: Convert to fraction form
    351,547.20/485,164.98 = 198,613.44/x
  3. Step 3: Cross multiply
    351,547.20x = 485,164.98 × 198,613.44
  4. Step 4: Simplify right side
    351,547.20x = 96,360,285,645.33
  5. Step 5: Solve for x
    x = 96,360,285,645.33/351,547.20
  6. Step 6: Final answer
    x = 274,103.41

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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.