Home / 231,210.78-345,944.10-136,492.49

Finding the Fourth Proportional to 231,210.78, 345,944.10 and 136,492.49

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Solution

The fourth proportional to 231,210.78, 345,944.10 and 136,492.49 is: 204,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,210.78 : 345,944.10 = 136,492.49 : x
  2. Step 2: Convert to fraction form
    231,210.78/345,944.10 = 136,492.49/x
  3. Step 3: Cross multiply
    231,210.78x = 345,944.10 × 136,492.49
  4. Step 4: Simplify right side
    231,210.78x = 47,218,769,880.09
  5. Step 5: Solve for x
    x = 47,218,769,880.09/231,210.78
  6. Step 6: Final answer
    x = 204,223.91

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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.