Home / 338,137.20-506,839.68-219,893.40

Finding the Fourth Proportional to 338,137.20, 506,839.68 and 219,893.40

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Solution

The fourth proportional to 338,137.20, 506,839.68 and 219,893.40 is: 329,602.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,137.20 : 506,839.68 = 219,893.40 : x
  2. Step 2: Convert to fraction form
    338,137.20/506,839.68 = 219,893.40/x
  3. Step 3: Cross multiply
    338,137.20x = 506,839.68 × 219,893.40
  4. Step 4: Simplify right side
    338,137.20x = 111,450,700,490.11
  5. Step 5: Solve for x
    x = 111,450,700,490.11/338,137.20
  6. Step 6: Final answer
    x = 329,602.01

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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.