Home / 288,156.72-397,180.40-192,628.56

Finding the Fourth Proportional to 288,156.72, 397,180.40 and 192,628.56

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Solution

The fourth proportional to 288,156.72, 397,180.40 and 192,628.56 is: 265,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,156.72 : 397,180.40 = 192,628.56 : x
  2. Step 2: Convert to fraction form
    288,156.72/397,180.40 = 192,628.56/x
  3. Step 3: Cross multiply
    288,156.72x = 397,180.40 × 192,628.56
  4. Step 4: Simplify right side
    288,156.72x = 76,508,288,512.22
  5. Step 5: Solve for x
    x = 76,508,288,512.22/288,156.72
  6. Step 6: Final answer
    x = 265,509.30

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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.