Home / 286,954.20-430,431.30-236,215.80

Finding the Fourth Proportional to 286,954.20, 430,431.30 and 236,215.80

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Solution

The fourth proportional to 286,954.20, 430,431.30 and 236,215.80 is: 354,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,954.20 : 430,431.30 = 236,215.80 : x
  2. Step 2: Convert to fraction form
    286,954.20/430,431.30 = 236,215.80/x
  3. Step 3: Cross multiply
    286,954.20x = 430,431.30 × 236,215.80
  4. Step 4: Simplify right side
    286,954.20x = 101,674,673,874.54
  5. Step 5: Solve for x
    x = 101,674,673,874.54/286,954.20
  6. Step 6: Final answer
    x = 354,323.70

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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.