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Finding the Fourth Proportional to 272,589.97, 376,174.11 and 151,728.67

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Solution

The fourth proportional to 272,589.97, 376,174.11 and 151,728.67 is: 209,385.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,589.97 : 376,174.11 = 151,728.67 : x
  2. Step 2: Convert to fraction form
    272,589.97/376,174.11 = 151,728.67/x
  3. Step 3: Cross multiply
    272,589.97x = 376,174.11 × 151,728.67
  4. Step 4: Simplify right side
    272,589.97x = 57,076,397,398.73
  5. Step 5: Solve for x
    x = 57,076,397,398.73/272,589.97
  6. Step 6: Final answer
    x = 209,385.54

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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.