Home / 205,022.20-307,533.30-57,278.20

Finding the Fourth Proportional to 205,022.20, 307,533.30 and 57,278.20

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Solution

The fourth proportional to 205,022.20, 307,533.30 and 57,278.20 is: 85,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,022.20 : 307,533.30 = 57,278.20 : x
  2. Step 2: Convert to fraction form
    205,022.20/307,533.30 = 57,278.20/x
  3. Step 3: Cross multiply
    205,022.20x = 307,533.30 × 57,278.20
  4. Step 4: Simplify right side
    205,022.20x = 17,614,953,864.06
  5. Step 5: Solve for x
    x = 17,614,953,864.06/205,022.20
  6. Step 6: Final answer
    x = 85,917.30

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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.