Home / 199,439.20-299,158.80-197,689.60

Finding the Fourth Proportional to 199,439.20, 299,158.80 and 197,689.60

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Solution

The fourth proportional to 199,439.20, 299,158.80 and 197,689.60 is: 296,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,439.20 : 299,158.80 = 197,689.60 : x
  2. Step 2: Convert to fraction form
    199,439.20/299,158.80 = 197,689.60/x
  3. Step 3: Cross multiply
    199,439.20x = 299,158.80 × 197,689.60
  4. Step 4: Simplify right side
    199,439.20x = 59,140,583,508.48
  5. Step 5: Solve for x
    x = 59,140,583,508.48/199,439.20
  6. Step 6: Final answer
    x = 296,534.40

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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.