Home / 205,135.40-307,703.10-202,370.60

Finding the Fourth Proportional to 205,135.40, 307,703.10 and 202,370.60

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Solution

The fourth proportional to 205,135.40, 307,703.10 and 202,370.60 is: 303,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,135.40 : 307,703.10 = 202,370.60 : x
  2. Step 2: Convert to fraction form
    205,135.40/307,703.10 = 202,370.60/x
  3. Step 3: Cross multiply
    205,135.40x = 307,703.10 × 202,370.60
  4. Step 4: Simplify right side
    205,135.40x = 62,270,060,968.86
  5. Step 5: Solve for x
    x = 62,270,060,968.86/205,135.40
  6. Step 6: Final answer
    x = 303,555.90

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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.