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Finding the Fourth Proportional to 345,937.91, 518,982.03 and 106,052.72

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Solution

The fourth proportional to 345,937.91, 518,982.03 and 106,052.72 is: 159,102.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,937.91 : 518,982.03 = 106,052.72 : x
  2. Step 2: Convert to fraction form
    345,937.91/518,982.03 = 106,052.72/x
  3. Step 3: Cross multiply
    345,937.91x = 518,982.03 × 106,052.72
  4. Step 4: Simplify right side
    345,937.91x = 55,039,453,317.71
  5. Step 5: Solve for x
    x = 55,039,453,317.71/345,937.91
  6. Step 6: Final answer
    x = 159,102.12

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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.