Home / 199,038.20-298,298.10-92,409.80

Finding the Fourth Proportional to 199,038.20, 298,298.10 and 92,409.80

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Solution

The fourth proportional to 199,038.20, 298,298.10 and 92,409.80 is: 138,494.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,038.20 : 298,298.10 = 92,409.80 : x
  2. Step 2: Convert to fraction form
    199,038.20/298,298.10 = 92,409.80/x
  3. Step 3: Cross multiply
    199,038.20x = 298,298.10 × 92,409.80
  4. Step 4: Simplify right side
    199,038.20x = 27,565,667,761.38
  5. Step 5: Solve for x
    x = 27,565,667,761.38/199,038.20
  6. Step 6: Final answer
    x = 138,494.36

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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.