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Finding the Fourth Proportional to 228,009.69, 314,641.08 and 126,029.07

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Solution

The fourth proportional to 228,009.69, 314,641.08 and 126,029.07 is: 173,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,009.69 : 314,641.08 = 126,029.07 : x
  2. Step 2: Convert to fraction form
    228,009.69/314,641.08 = 126,029.07/x
  3. Step 3: Cross multiply
    228,009.69x = 314,641.08 × 126,029.07
  4. Step 4: Simplify right side
    228,009.69x = 39,653,922,696.20
  5. Step 5: Solve for x
    x = 39,653,922,696.20/228,009.69
  6. Step 6: Final answer
    x = 173,913.32

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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.