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Finding the Fourth Proportional to 371,209.00, 512,003.79 and 340,680.50

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Solution

The fourth proportional to 371,209.00, 512,003.79 and 340,680.50 is: 469,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,209.00 : 512,003.79 = 340,680.50 : x
  2. Step 2: Convert to fraction form
    371,209.00/512,003.79 = 340,680.50/x
  3. Step 3: Cross multiply
    371,209.00x = 512,003.79 × 340,680.50
  4. Step 4: Simplify right side
    371,209.00x = 174,429,709,736.66
  5. Step 5: Solve for x
    x = 174,429,709,736.66/371,209.00
  6. Step 6: Final answer
    x = 469,896.23

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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.