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Finding the Fourth Proportional to 340,712.32, 470,192.34 and 189,809.32

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Solution

The fourth proportional to 340,712.32, 470,192.34 and 189,809.32 is: 261,942.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,712.32 : 470,192.34 = 189,809.32 : x
  2. Step 2: Convert to fraction form
    340,712.32/470,192.34 = 189,809.32/x
  3. Step 3: Cross multiply
    340,712.32x = 470,192.34 × 189,809.32
  4. Step 4: Simplify right side
    340,712.32x = 89,246,888,324.61
  5. Step 5: Solve for x
    x = 89,246,888,324.61/340,712.32
  6. Step 6: Final answer
    x = 261,942.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.