Home / 251,721.09-377,464.56-91,685.61

Finding the Fourth Proportional to 251,721.09, 377,464.56 and 91,685.61

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Solution

The fourth proportional to 251,721.09, 377,464.56 and 91,685.61 is: 137,485.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,721.09 : 377,464.56 = 91,685.61 : x
  2. Step 2: Convert to fraction form
    251,721.09/377,464.56 = 91,685.61/x
  3. Step 3: Cross multiply
    251,721.09x = 377,464.56 × 91,685.61
  4. Step 4: Simplify right side
    251,721.09x = 34,608,066,549.66
  5. Step 5: Solve for x
    x = 34,608,066,549.66/251,721.09
  6. Step 6: Final answer
    x = 137,485.77

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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.