Home / 345,450.89-518,176.34-134,941.21

Finding the Fourth Proportional to 345,450.89, 518,176.34 and 134,941.21

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Solution

The fourth proportional to 345,450.89, 518,176.34 and 134,941.21 is: 202,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,450.89 : 518,176.34 = 134,941.21 : x
  2. Step 2: Convert to fraction form
    345,450.89/518,176.34 = 134,941.21/x
  3. Step 3: Cross multiply
    345,450.89x = 518,176.34 × 134,941.21
  4. Step 4: Simplify right side
    345,450.89x = 69,923,339,047.38
  5. Step 5: Solve for x
    x = 69,923,339,047.38/345,450.89
  6. Step 6: Final answer
    x = 202,411.81

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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.