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Finding the Fourth Proportional to 208,100.60, 287,179.82 and 117,460.40

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Solution

The fourth proportional to 208,100.60, 287,179.82 and 117,460.40 is: 162,095.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,100.60 : 287,179.82 = 117,460.40 : x
  2. Step 2: Convert to fraction form
    208,100.60/287,179.82 = 117,460.40/x
  3. Step 3: Cross multiply
    208,100.60x = 287,179.82 × 117,460.40
  4. Step 4: Simplify right side
    208,100.60x = 33,732,256,529.13
  5. Step 5: Solve for x
    x = 33,732,256,529.13/208,100.60
  6. Step 6: Final answer
    x = 162,095.91

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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.