Home / 352,400.22-486,312.12-199,435.64

Finding the Fourth Proportional to 352,400.22, 486,312.12 and 199,435.64

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Solution

The fourth proportional to 352,400.22, 486,312.12 and 199,435.64 is: 275,221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,400.22 : 486,312.12 = 199,435.64 : x
  2. Step 2: Convert to fraction form
    352,400.22/486,312.12 = 199,435.64/x
  3. Step 3: Cross multiply
    352,400.22x = 486,312.12 × 199,435.64
  4. Step 4: Simplify right side
    352,400.22x = 96,987,966,460.40
  5. Step 5: Solve for x
    x = 96,987,966,460.40/352,400.22
  6. Step 6: Final answer
    x = 275,221.07

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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.