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Finding the Fourth Proportional to 347,664.96, 479,777.84 and 188,688.96

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Solution

The fourth proportional to 347,664.96, 479,777.84 and 188,688.96 is: 260,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,664.96 : 479,777.84 = 188,688.96 : x
  2. Step 2: Convert to fraction form
    347,664.96/479,777.84 = 188,688.96/x
  3. Step 3: Cross multiply
    347,664.96x = 479,777.84 × 188,688.96
  4. Step 4: Simplify right side
    347,664.96x = 90,528,781,660.65
  5. Step 5: Solve for x
    x = 90,528,781,660.65/347,664.96
  6. Step 6: Final answer
    x = 260,390.87

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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.