Home / 198,856.89-297,699.23-131,264.21

Finding the Fourth Proportional to 198,856.89, 297,699.23 and 131,264.21

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Solution

The fourth proportional to 198,856.89, 297,699.23 and 131,264.21 is: 196,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,856.89 : 297,699.23 = 131,264.21 : x
  2. Step 2: Convert to fraction form
    198,856.89/297,699.23 = 131,264.21/x
  3. Step 3: Cross multiply
    198,856.89x = 297,699.23 × 131,264.21
  4. Step 4: Simplify right side
    198,856.89x = 39,077,255,315.97
  5. Step 5: Solve for x
    x = 39,077,255,315.97/198,856.89
  6. Step 6: Final answer
    x = 196,509.44

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1.5x scale

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.