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Finding the Fourth Proportional to 303,608.84, 419,015.73 and 252,531.45

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Solution

The fourth proportional to 303,608.84, 419,015.73 and 252,531.45 is: 348,522.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,608.84 : 419,015.73 = 252,531.45 : x
  2. Step 2: Convert to fraction form
    303,608.84/419,015.73 = 252,531.45/x
  3. Step 3: Cross multiply
    303,608.84x = 419,015.73 × 252,531.45
  4. Step 4: Simplify right side
    303,608.84x = 105,814,649,869.71
  5. Step 5: Solve for x
    x = 105,814,649,869.71/303,608.84
  6. Step 6: Final answer
    x = 348,522.96

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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.