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Finding the Fourth Proportional to 288,176.72, 397,208 and 192,648.56

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Solution

The fourth proportional to 288,176.72, 397,208 and 192,648.56 is: 265,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,176.72 : 397,208 = 192,648.56 : x
  2. Step 2: Convert to fraction form
    288,176.72/397,208 = 192,648.56/x
  3. Step 3: Cross multiply
    288,176.72x = 397,208 × 192,648.56
  4. Step 4: Simplify right side
    288,176.72x = 76,521,549,220.48
  5. Step 5: Solve for x
    x = 76,521,549,220.48/288,176.72
  6. Step 6: Final answer
    x = 265,536.89

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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.