Home / 200,281.20-276,401.44-115,403.76

Finding the Fourth Proportional to 200,281.20, 276,401.44 and 115,403.76

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Solution

The fourth proportional to 200,281.20, 276,401.44 and 115,403.76 is: 159,264.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,281.20 : 276,401.44 = 115,403.76 : x
  2. Step 2: Convert to fraction form
    200,281.20/276,401.44 = 115,403.76/x
  3. Step 3: Cross multiply
    200,281.20x = 276,401.44 × 115,403.76
  4. Step 4: Simplify right side
    200,281.20x = 31,897,765,445.41
  5. Step 5: Solve for x
    x = 31,897,765,445.41/200,281.20
  6. Step 6: Final answer
    x = 159,264.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.