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Finding the Fourth Proportional to 306,662.35, 423,184.62 and 170,692.81

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Solution

The fourth proportional to 306,662.35, 423,184.62 and 170,692.81 is: 235,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,662.35 : 423,184.62 = 170,692.81 : x
  2. Step 2: Convert to fraction form
    306,662.35/423,184.62 = 170,692.81/x
  3. Step 3: Cross multiply
    306,662.35x = 423,184.62 × 170,692.81
  4. Step 4: Simplify right side
    306,662.35x = 72,234,571,936.58
  5. Step 5: Solve for x
    x = 72,234,571,936.58/306,662.35
  6. Step 6: Final answer
    x = 235,550.83

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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.