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Finding the Fourth Proportional to 351,588.81, 485,192.34 and 190,443.48

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Solution

The fourth proportional to 351,588.81, 485,192.34 and 190,443.48 is: 262,811.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,588.81 : 485,192.34 = 190,443.48 : x
  2. Step 2: Convert to fraction form
    351,588.81/485,192.34 = 190,443.48/x
  3. Step 3: Cross multiply
    351,588.81x = 485,192.34 × 190,443.48
  4. Step 4: Simplify right side
    351,588.81x = 92,401,717,698.94
  5. Step 5: Solve for x
    x = 92,401,717,698.94/351,588.81
  6. Step 6: Final answer
    x = 262,811.88

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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.