Home / 288,190.14-397,786.85-167,385.72

Finding the Fourth Proportional to 288,190.14, 397,786.85 and 167,385.72

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Solution

The fourth proportional to 288,190.14, 397,786.85 and 167,385.72 is: 231,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,190.14 : 397,786.85 = 167,385.72 : x
  2. Step 2: Convert to fraction form
    288,190.14/397,786.85 = 167,385.72/x
  3. Step 3: Cross multiply
    288,190.14x = 397,786.85 × 167,385.72
  4. Step 4: Simplify right side
    288,190.14x = 66,583,839,576.25
  5. Step 5: Solve for x
    x = 66,583,839,576.25/288,190.14
  6. Step 6: Final answer
    x = 231,041.35

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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.