Home / 262,211.40-393,317.10-156,976.20

Finding the Fourth Proportional to 262,211.40, 393,317.10 and 156,976.20

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Solution

The fourth proportional to 262,211.40, 393,317.10 and 156,976.20 is: 235,464.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,211.40 : 393,317.10 = 156,976.20 : x
  2. Step 2: Convert to fraction form
    262,211.40/393,317.10 = 156,976.20/x
  3. Step 3: Cross multiply
    262,211.40x = 393,317.10 × 156,976.20
  4. Step 4: Simplify right side
    262,211.40x = 61,741,423,753.02
  5. Step 5: Solve for x
    x = 61,741,423,753.02/262,211.40
  6. Step 6: Final answer
    x = 235,464.30

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Similar ratio
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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.