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Finding the Fourth Proportional to 228,477.07, 315,310.01 and 126,513.82

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Solution

The fourth proportional to 228,477.07, 315,310.01 and 126,513.82 is: 174,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,477.07 : 315,310.01 = 126,513.82 : x
  2. Step 2: Convert to fraction form
    228,477.07/315,310.01 = 126,513.82/x
  3. Step 3: Cross multiply
    228,477.07x = 315,310.01 × 126,513.82
  4. Step 4: Simplify right side
    228,477.07x = 39,891,072,272.79
  5. Step 5: Solve for x
    x = 39,891,072,272.79/228,477.07
  6. Step 6: Final answer
    x = 174,595.52

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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.