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Finding the Fourth Proportional to 330,247.68, 455,749.11 and 185,064.27

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Solution

The fourth proportional to 330,247.68, 455,749.11 and 185,064.27 is: 255,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,247.68 : 455,749.11 = 185,064.27 : x
  2. Step 2: Convert to fraction form
    330,247.68/455,749.11 = 185,064.27/x
  3. Step 3: Cross multiply
    330,247.68x = 455,749.11 × 185,064.27
  4. Step 4: Simplify right side
    330,247.68x = 84,342,876,345.30
  5. Step 5: Solve for x
    x = 84,342,876,345.30/330,247.68
  6. Step 6: Final answer
    x = 255,392.79

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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.