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Finding the Fourth Proportional to 303,995.31, 419,549.07 and 252,917.93

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Solution

The fourth proportional to 303,995.31, 419,549.07 and 252,917.93 is: 349,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,995.31 : 419,549.07 = 252,917.93 : x
  2. Step 2: Convert to fraction form
    303,995.31/419,549.07 = 252,917.93/x
  3. Step 3: Cross multiply
    303,995.31x = 419,549.07 × 252,917.93
  4. Step 4: Simplify right side
    303,995.31x = 106,111,480,220.08
  5. Step 5: Solve for x
    x = 106,111,480,220.08/303,995.31
  6. Step 6: Final answer
    x = 349,056.31

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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.