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Finding the Fourth Proportional to 208,059.69, 287,122.28 and 117,434.66

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Solution

The fourth proportional to 208,059.69, 287,122.28 and 117,434.66 is: 162,059.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,059.69 : 287,122.28 = 117,434.66 : x
  2. Step 2: Convert to fraction form
    208,059.69/287,122.28 = 117,434.66/x
  3. Step 3: Cross multiply
    208,059.69x = 287,122.28 × 117,434.66
  4. Step 4: Simplify right side
    208,059.69x = 33,718,107,460.86
  5. Step 5: Solve for x
    x = 33,718,107,460.86/208,059.69
  6. Step 6: Final answer
    x = 162,059.78

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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.