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Finding the Fourth Proportional to 655,369.39, 983,089.10 and 206,125.28

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Solution

The fourth proportional to 655,369.39, 983,089.10 and 206,125.28 is: 309,198.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,369.39 : 983,089.10 = 206,125.28 : x
  2. Step 2: Convert to fraction form
    655,369.39/983,089.10 = 206,125.28/x
  3. Step 3: Cross multiply
    655,369.39x = 983,089.10 × 206,125.28
  4. Step 4: Simplify right side
    655,369.39x = 202,639,511,602.32
  5. Step 5: Solve for x
    x = 202,639,511,602.32/655,369.39
  6. Step 6: Final answer
    x = 309,198.93

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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.