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Finding the Fourth Proportional to 348,299.09, 480,207.77 and 225,574.64

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Solution

The fourth proportional to 348,299.09, 480,207.77 and 225,574.64 is: 311,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,299.09 : 480,207.77 = 225,574.64 : x
  2. Step 2: Convert to fraction form
    348,299.09/480,207.77 = 225,574.64/x
  3. Step 3: Cross multiply
    348,299.09x = 480,207.77 × 225,574.64
  4. Step 4: Simplify right side
    348,299.09x = 108,322,696,607.41
  5. Step 5: Solve for x
    x = 108,322,696,607.41/348,299.09
  6. Step 6: Final answer
    x = 311,004.83

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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.