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Finding the Fourth Proportional to 208,040.78, 287,093.48 and 116,161.49

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Solution

The fourth proportional to 208,040.78, 287,093.48 and 116,161.49 is: 160,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,040.78 : 287,093.48 = 116,161.49 : x
  2. Step 2: Convert to fraction form
    208,040.78/287,093.48 = 116,161.49/x
  3. Step 3: Cross multiply
    208,040.78x = 287,093.48 × 116,161.49
  4. Step 4: Simplify right side
    208,040.78x = 33,349,204,389.81
  5. Step 5: Solve for x
    x = 33,349,204,389.81/208,040.78
  6. Step 6: Final answer
    x = 160,301.29

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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.