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Finding the Fourth Proportional to 290,973.74, 435,893.13 and 164,230.61

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Solution

The fourth proportional to 290,973.74, 435,893.13 and 164,230.61 is: 246,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,973.74 : 435,893.13 = 164,230.61 : x
  2. Step 2: Convert to fraction form
    290,973.74/435,893.13 = 164,230.61/x
  3. Step 3: Cross multiply
    290,973.74x = 435,893.13 × 164,230.61
  4. Step 4: Simplify right side
    290,973.74x = 71,586,992,455.24
  5. Step 5: Solve for x
    x = 71,586,992,455.24/290,973.74
  6. Step 6: Final answer
    x = 246,025.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.