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Finding the Fourth Proportional to 354,652.41, 489,598.79 and 225,720.66

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Solution

The fourth proportional to 354,652.41, 489,598.79 and 225,720.66 is: 311,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,652.41 : 489,598.79 = 225,720.66 : x
  2. Step 2: Convert to fraction form
    354,652.41/489,598.79 = 225,720.66/x
  3. Step 3: Cross multiply
    354,652.41x = 489,598.79 × 225,720.66
  4. Step 4: Simplify right side
    354,652.41x = 110,512,562,014.00
  5. Step 5: Solve for x
    x = 110,512,562,014.00/354,652.41
  6. Step 6: Final answer
    x = 311,608.10

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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.