Home / 352,422.64-486,336-199,458.10

Finding the Fourth Proportional to 352,422.64, 486,336 and 199,458.10

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Solution

The fourth proportional to 352,422.64, 486,336 and 199,458.10 is: 275,248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,422.64 : 486,336 = 199,458.10 : x
  2. Step 2: Convert to fraction form
    352,422.64/486,336 = 199,458.10/x
  3. Step 3: Cross multiply
    352,422.64x = 486,336 × 199,458.10
  4. Step 4: Simplify right side
    352,422.64x = 97,003,654,521.60
  5. Step 5: Solve for x
    x = 97,003,654,521.60/352,422.64
  6. Step 6: Final answer
    x = 275,248.08

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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.