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Finding the Fourth Proportional to 205,231.80, 307,329.30 and 163,759.80

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Solution

The fourth proportional to 205,231.80, 307,329.30 and 163,759.80 is: 245,226.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,231.80 : 307,329.30 = 163,759.80 : x
  2. Step 2: Convert to fraction form
    205,231.80/307,329.30 = 163,759.80/x
  3. Step 3: Cross multiply
    205,231.80x = 307,329.30 × 163,759.80
  4. Step 4: Simplify right side
    205,231.80x = 50,328,184,702.14
  5. Step 5: Solve for x
    x = 50,328,184,702.14/205,231.80
  6. Step 6: Final answer
    x = 245,226.06

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1.5x scale

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.