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Finding the Fourth Proportional to 199,006.80, 298,510.20 and 74,341.20

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Solution

The fourth proportional to 199,006.80, 298,510.20 and 74,341.20 is: 111,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,006.80 : 298,510.20 = 74,341.20 : x
  2. Step 2: Convert to fraction form
    199,006.80/298,510.20 = 74,341.20/x
  3. Step 3: Cross multiply
    199,006.80x = 298,510.20 × 74,341.20
  4. Step 4: Simplify right side
    199,006.80x = 22,191,606,480.24
  5. Step 5: Solve for x
    x = 22,191,606,480.24/199,006.80
  6. Step 6: Final answer
    x = 111,511.80

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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.