Home / 205,972.60-308,570.10-105,791.80

Finding the Fourth Proportional to 205,972.60, 308,570.10 and 105,791.80

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Solution

The fourth proportional to 205,972.60, 308,570.10 and 105,791.80 is: 158,488.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,972.60 : 308,570.10 = 105,791.80 : x
  2. Step 2: Convert to fraction form
    205,972.60/308,570.10 = 105,791.80/x
  3. Step 3: Cross multiply
    205,972.60x = 308,570.10 × 105,791.80
  4. Step 4: Simplify right side
    205,972.60x = 32,644,186,305.18
  5. Step 5: Solve for x
    x = 32,644,186,305.18/205,972.60
  6. Step 6: Final answer
    x = 158,488.00

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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.