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Finding the Fourth Proportional to 208,252.92, 287,379.18 and 123,356.28

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Solution

The fourth proportional to 208,252.92, 287,379.18 and 123,356.28 is: 170,225.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,252.92 : 287,379.18 = 123,356.28 : x
  2. Step 2: Convert to fraction form
    208,252.92/287,379.18 = 123,356.28/x
  3. Step 3: Cross multiply
    208,252.92x = 287,379.18 × 123,356.28
  4. Step 4: Simplify right side
    208,252.92x = 35,450,026,594.25
  5. Step 5: Solve for x
    x = 35,450,026,594.25/208,252.92
  6. Step 6: Final answer
    x = 170,225.83

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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.