Home / 231,621.89-347,492.73-135,640.15

Finding the Fourth Proportional to 231,621.89, 347,492.73 and 135,640.15

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Solution

The fourth proportional to 231,621.89, 347,492.73 and 135,640.15 is: 203,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,621.89 : 347,492.73 = 135,640.15 : x
  2. Step 2: Convert to fraction form
    231,621.89/347,492.73 = 135,640.15/x
  3. Step 3: Cross multiply
    231,621.89x = 347,492.73 × 135,640.15
  4. Step 4: Simplify right side
    231,621.89x = 47,133,966,021.11
  5. Step 5: Solve for x
    x = 47,133,966,021.11/231,621.89
  6. Step 6: Final answer
    x = 203,495.30

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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.