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Finding the Fourth Proportional to 228,606.66, 315,479.73 and 126,633.69

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Solution

The fourth proportional to 228,606.66, 315,479.73 and 126,633.69 is: 174,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,606.66 : 315,479.73 = 126,633.69 : x
  2. Step 2: Convert to fraction form
    228,606.66/315,479.73 = 126,633.69/x
  3. Step 3: Cross multiply
    228,606.66x = 315,479.73 × 126,633.69
  4. Step 4: Simplify right side
    228,606.66x = 39,950,362,330.10
  5. Step 5: Solve for x
    x = 39,950,362,330.10/228,606.66
  6. Step 6: Final answer
    x = 174,755.90

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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.