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Finding the Fourth Proportional to 208,425.30, 287,625.69 and 117,810.60

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Solution

The fourth proportional to 208,425.30, 287,625.69 and 117,810.60 is: 162,577.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,425.30 : 287,625.69 = 117,810.60 : x
  2. Step 2: Convert to fraction form
    208,425.30/287,625.69 = 117,810.60/x
  3. Step 3: Cross multiply
    208,425.30x = 287,625.69 × 117,810.60
  4. Step 4: Simplify right side
    208,425.30x = 33,885,355,114.31
  5. Step 5: Solve for x
    x = 33,885,355,114.31/208,425.30
  6. Step 6: Final answer
    x = 162,577.94

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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.