Home / 205,983.60-308,687.40-163,935.60

Finding the Fourth Proportional to 205,983.60, 308,687.40 and 163,935.60

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Solution

The fourth proportional to 205,983.60, 308,687.40 and 163,935.60 is: 245,674.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,983.60 : 308,687.40 = 163,935.60 : x
  2. Step 2: Convert to fraction form
    205,983.60/308,687.40 = 163,935.60/x
  3. Step 3: Cross multiply
    205,983.60x = 308,687.40 × 163,935.60
  4. Step 4: Simplify right side
    205,983.60x = 50,604,854,131.44
  5. Step 5: Solve for x
    x = 50,604,854,131.44/205,983.60
  6. Step 6: Final answer
    x = 245,674.19

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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.