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Finding the Fourth Proportional to 272,438.58, 408,653.76 and 122,573.04

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Solution

The fourth proportional to 272,438.58, 408,653.76 and 122,573.04 is: 183,857.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,438.58 : 408,653.76 = 122,573.04 : x
  2. Step 2: Convert to fraction form
    272,438.58/408,653.76 = 122,573.04/x
  3. Step 3: Cross multiply
    272,438.58x = 408,653.76 × 122,573.04
  4. Step 4: Simplify right side
    272,438.58x = 50,089,933,670.63
  5. Step 5: Solve for x
    x = 50,089,933,670.63/272,438.58
  6. Step 6: Final answer
    x = 183,857.71

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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.