Home / 186,800.40-280,200.60-172,366.20

Finding the Fourth Proportional to 186,800.40, 280,200.60 and 172,366.20

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Solution

The fourth proportional to 186,800.40, 280,200.60 and 172,366.20 is: 258,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,800.40 : 280,200.60 = 172,366.20 : x
  2. Step 2: Convert to fraction form
    186,800.40/280,200.60 = 172,366.20/x
  3. Step 3: Cross multiply
    186,800.40x = 280,200.60 × 172,366.20
  4. Step 4: Simplify right side
    186,800.40x = 48,297,112,659.72
  5. Step 5: Solve for x
    x = 48,297,112,659.72/186,800.40
  6. Step 6: Final answer
    x = 258,549.30

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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.