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Finding the Fourth Proportional to 288,047.70, 397,400.85 and 179,144.82

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Solution

The fourth proportional to 288,047.70, 397,400.85 and 179,144.82 is: 247,154.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,047.70 : 397,400.85 = 179,144.82 : x
  2. Step 2: Convert to fraction form
    288,047.70/397,400.85 = 179,144.82/x
  3. Step 3: Cross multiply
    288,047.70x = 397,400.85 × 179,144.82
  4. Step 4: Simplify right side
    288,047.70x = 71,192,303,741.10
  5. Step 5: Solve for x
    x = 71,192,303,741.10/288,047.70
  6. Step 6: Final answer
    x = 247,154.56

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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.