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Finding the Fourth Proportional to 253,811.57, 380,698.30 and 73,898.38

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Solution

The fourth proportional to 253,811.57, 380,698.30 and 73,898.38 is: 110,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,811.57 : 380,698.30 = 73,898.38 : x
  2. Step 2: Convert to fraction form
    253,811.57/380,698.30 = 73,898.38/x
  3. Step 3: Cross multiply
    253,811.57x = 380,698.30 × 73,898.38
  4. Step 4: Simplify right side
    253,811.57x = 28,132,985,365.77
  5. Step 5: Solve for x
    x = 28,132,985,365.77/253,811.57
  6. Step 6: Final answer
    x = 110,842.01

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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.