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Finding the Fourth Proportional to 354,796.88, 489,544.77 and 225,688.34

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Solution

The fourth proportional to 354,796.88, 489,544.77 and 225,688.34 is: 311,402.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,796.88 : 489,544.77 = 225,688.34 : x
  2. Step 2: Convert to fraction form
    354,796.88/489,544.77 = 225,688.34/x
  3. Step 3: Cross multiply
    354,796.88x = 489,544.77 × 225,688.34
  4. Step 4: Simplify right side
    354,796.88x = 110,484,546,496.98
  5. Step 5: Solve for x
    x = 110,484,546,496.98/354,796.88
  6. Step 6: Final answer
    x = 311,402.25

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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.