Home / 288,930.06-398,726.01-161,617.50

Finding the Fourth Proportional to 288,930.06, 398,726.01 and 161,617.50

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Solution

The fourth proportional to 288,930.06, 398,726.01 and 161,617.50 is: 223,033.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,930.06 : 398,726.01 = 161,617.50 : x
  2. Step 2: Convert to fraction form
    288,930.06/398,726.01 = 161,617.50/x
  3. Step 3: Cross multiply
    288,930.06x = 398,726.01 × 161,617.50
  4. Step 4: Simplify right side
    288,930.06x = 64,441,100,921.18
  5. Step 5: Solve for x
    x = 64,441,100,921.18/288,930.06
  6. Step 6: Final answer
    x = 223,033.56

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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.