Home / 469,921.76-648,491.20-255,061.56

Finding the Fourth Proportional to 469,921.76, 648,491.20 and 255,061.56

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Solution

The fourth proportional to 469,921.76, 648,491.20 and 255,061.56 is: 351,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,921.76 : 648,491.20 = 255,061.56 : x
  2. Step 2: Convert to fraction form
    469,921.76/648,491.20 = 255,061.56/x
  3. Step 3: Cross multiply
    469,921.76x = 648,491.20 × 255,061.56
  4. Step 4: Simplify right side
    469,921.76x = 165,405,177,118.27
  5. Step 5: Solve for x
    x = 165,405,177,118.27/469,921.76
  6. Step 6: Final answer
    x = 351,984.50

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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.