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Finding the Fourth Proportional to 369,107.30, 509,367.90 and 199,341.44

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Solution

The fourth proportional to 369,107.30, 509,367.90 and 199,341.44 is: 275,091.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,107.30 : 509,367.90 = 199,341.44 : x
  2. Step 2: Convert to fraction form
    369,107.30/509,367.90 = 199,341.44/x
  3. Step 3: Cross multiply
    369,107.30x = 509,367.90 × 199,341.44
  4. Step 4: Simplify right side
    369,107.30x = 101,538,130,675.78
  5. Step 5: Solve for x
    x = 101,538,130,675.78/369,107.30
  6. Step 6: Final answer
    x = 275,091.09

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1.5x scale

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.