Home / 352,430.05-486,331.32-199,499.28

Finding the Fourth Proportional to 352,430.05, 486,331.32 and 199,499.28

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Solution

The fourth proportional to 352,430.05, 486,331.32 and 199,499.28 is: 275,296.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,430.05 : 486,331.32 = 199,499.28 : x
  2. Step 2: Convert to fraction form
    352,430.05/486,331.32 = 199,499.28/x
  3. Step 3: Cross multiply
    352,430.05x = 486,331.32 × 199,499.28
  4. Step 4: Simplify right side
    352,430.05x = 97,022,748,181.45
  5. Step 5: Solve for x
    x = 97,022,748,181.45/352,430.05
  6. Step 6: Final answer
    x = 275,296.47

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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.