Home / 354,475.02-489,254.94-225,388.56

Finding the Fourth Proportional to 354,475.02, 489,254.94 and 225,388.56

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Solution

The fourth proportional to 354,475.02, 489,254.94 and 225,388.56 is: 311,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,475.02 : 489,254.94 = 225,388.56 : x
  2. Step 2: Convert to fraction form
    354,475.02/489,254.94 = 225,388.56/x
  3. Step 3: Cross multiply
    354,475.02x = 489,254.94 × 225,388.56
  4. Step 4: Simplify right side
    354,475.02x = 110,272,466,399.49
  5. Step 5: Solve for x
    x = 110,272,466,399.49/354,475.02
  6. Step 6: Final answer
    x = 311,086.71

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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.