Home / 288,984.16-398,782.10-161,635.15

Finding the Fourth Proportional to 288,984.16, 398,782.10 and 161,635.15

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Solution

The fourth proportional to 288,984.16, 398,782.10 and 161,635.15 is: 223,047.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,984.16 : 398,782.10 = 161,635.15 : x
  2. Step 2: Convert to fraction form
    288,984.16/398,782.10 = 161,635.15/x
  3. Step 3: Cross multiply
    288,984.16x = 398,782.10 × 161,635.15
  4. Step 4: Simplify right side
    288,984.16x = 64,457,204,550.82
  5. Step 5: Solve for x
    x = 64,457,204,550.82/288,984.16
  6. Step 6: Final answer
    x = 223,047.54

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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.