Home / 251,932.80-347,641.50-155,121.30

Finding the Fourth Proportional to 251,932.80, 347,641.50 and 155,121.30

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Solution

The fourth proportional to 251,932.80, 347,641.50 and 155,121.30 is: 214,051.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,932.80 : 347,641.50 = 155,121.30 : x
  2. Step 2: Convert to fraction form
    251,932.80/347,641.50 = 155,121.30/x
  3. Step 3: Cross multiply
    251,932.80x = 347,641.50 × 155,121.30
  4. Step 4: Simplify right side
    251,932.80x = 53,926,601,413.95
  5. Step 5: Solve for x
    x = 53,926,601,413.95/251,932.80
  6. Step 6: Final answer
    x = 214,051.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.