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Finding the Fourth Proportional to 208,001.88, 287,017.88 and 117,352.55

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Solution

The fourth proportional to 208,001.88, 287,017.88 and 117,352.55 is: 161,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,001.88 : 287,017.88 = 117,352.55 : x
  2. Step 2: Convert to fraction form
    208,001.88/287,017.88 = 117,352.55/x
  3. Step 3: Cross multiply
    208,001.88x = 287,017.88 × 117,352.55
  4. Step 4: Simplify right side
    208,001.88x = 33,682,278,091.74
  5. Step 5: Solve for x
    x = 33,682,278,091.74/208,001.88
  6. Step 6: Final answer
    x = 161,932.57

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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.