Home / 206,006.36-309,209.25-99,465.45

Finding the Fourth Proportional to 206,006.36, 309,209.25 and 99,465.45

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Solution

The fourth proportional to 206,006.36, 309,209.25 and 99,465.45 is: 149,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,006.36 : 309,209.25 = 99,465.45 : x
  2. Step 2: Convert to fraction form
    206,006.36/309,209.25 = 99,465.45/x
  3. Step 3: Cross multiply
    206,006.36x = 309,209.25 × 99,465.45
  4. Step 4: Simplify right side
    206,006.36x = 30,755,636,408.87
  5. Step 5: Solve for x
    x = 30,755,636,408.87/206,006.36
  6. Step 6: Final answer
    x = 149,294.60

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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.