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Finding the Fourth Proportional to 207,954.32, 287,054.58 and 161,922.84

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Solution

The fourth proportional to 207,954.32, 287,054.58 and 161,922.84 is: 223,513.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,954.32 : 287,054.58 = 161,922.84 : x
  2. Step 2: Convert to fraction form
    207,954.32/287,054.58 = 161,922.84/x
  3. Step 3: Cross multiply
    207,954.32x = 287,054.58 × 161,922.84
  4. Step 4: Simplify right side
    207,954.32x = 46,480,692,828.61
  5. Step 5: Solve for x
    x = 46,480,692,828.61/207,954.32
  6. Step 6: Final answer
    x = 223,513.96

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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.