Home / 215,932.80-323,899.20-189,688.80

Finding the Fourth Proportional to 215,932.80, 323,899.20 and 189,688.80

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Solution

The fourth proportional to 215,932.80, 323,899.20 and 189,688.80 is: 284,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,932.80 : 323,899.20 = 189,688.80 : x
  2. Step 2: Convert to fraction form
    215,932.80/323,899.20 = 189,688.80/x
  3. Step 3: Cross multiply
    215,932.80x = 323,899.20 × 189,688.80
  4. Step 4: Simplify right side
    215,932.80x = 61,440,050,568.96
  5. Step 5: Solve for x
    x = 61,440,050,568.96/215,932.80
  6. Step 6: Final answer
    x = 284,533.20

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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.