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Finding the Fourth Proportional to 290,529.81, 400,893.84 and 169,583.58

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Solution

The fourth proportional to 290,529.81, 400,893.84 and 169,583.58 is: 234,003.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,529.81 : 400,893.84 = 169,583.58 : x
  2. Step 2: Convert to fraction form
    290,529.81/400,893.84 = 169,583.58/x
  3. Step 3: Cross multiply
    290,529.81x = 400,893.84 × 169,583.58
  4. Step 4: Simplify right side
    290,529.81x = 67,985,012,587.15
  5. Step 5: Solve for x
    x = 67,985,012,587.15/290,529.81
  6. Step 6: Final answer
    x = 234,003.57

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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.