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Finding the Fourth Proportional to 288,239.49, 397,774.44 and 159,186.67

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Solution

The fourth proportional to 288,239.49, 397,774.44 and 159,186.67 is: 219,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,239.49 : 397,774.44 = 159,186.67 : x
  2. Step 2: Convert to fraction form
    288,239.49/397,774.44 = 159,186.67/x
  3. Step 3: Cross multiply
    288,239.49x = 397,774.44 × 159,186.67
  4. Step 4: Simplify right side
    288,239.49x = 63,320,388,514.71
  5. Step 5: Solve for x
    x = 63,320,388,514.71/288,239.49
  6. Step 6: Final answer
    x = 219,679.78

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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.