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Finding the Fourth Proportional to 354,630.71, 531,758.07 and 154,717.56

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Solution

The fourth proportional to 354,630.71, 531,758.07 and 154,717.56 is: 231,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,630.71 : 531,758.07 = 154,717.56 : x
  2. Step 2: Convert to fraction form
    354,630.71/531,758.07 = 154,717.56/x
  3. Step 3: Cross multiply
    354,630.71x = 531,758.07 × 154,717.56
  4. Step 4: Simplify right side
    354,630.71x = 82,272,311,100.71
  5. Step 5: Solve for x
    x = 82,272,311,100.71/354,630.71
  6. Step 6: Final answer
    x = 231,994.32

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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.