Home / 199,331.82-298,840.77-99,440.64

Finding the Fourth Proportional to 199,331.82, 298,840.77 and 99,440.64

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Solution

The fourth proportional to 199,331.82, 298,840.77 and 99,440.64 is: 149,082.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,331.82 : 298,840.77 = 99,440.64 : x
  2. Step 2: Convert to fraction form
    199,331.82/298,840.77 = 99,440.64/x
  3. Step 3: Cross multiply
    199,331.82x = 298,840.77 × 99,440.64
  4. Step 4: Simplify right side
    199,331.82x = 29,716,917,426.89
  5. Step 5: Solve for x
    x = 29,716,917,426.89/199,331.82
  6. Step 6: Final answer
    x = 149,082.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.