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Finding the Fourth Proportional to 371,703.24, 512,918.60 and 206,136.52

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Solution

The fourth proportional to 371,703.24, 512,918.60 and 206,136.52 is: 284,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,703.24 : 512,918.60 = 206,136.52 : x
  2. Step 2: Convert to fraction form
    371,703.24/512,918.60 = 206,136.52/x
  3. Step 3: Cross multiply
    371,703.24x = 512,918.60 × 206,136.52
  4. Step 4: Simplify right side
    371,703.24x = 105,731,255,247.27
  5. Step 5: Solve for x
    x = 105,731,255,247.27/371,703.24
  6. Step 6: Final answer
    x = 284,450.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.