Home / 328,789.58-493,145.76-92,151.32

Finding the Fourth Proportional to 328,789.58, 493,145.76 and 92,151.32

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Solution

The fourth proportional to 328,789.58, 493,145.76 and 92,151.32 is: 138,216.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,789.58 : 493,145.76 = 92,151.32 : x
  2. Step 2: Convert to fraction form
    328,789.58/493,145.76 = 92,151.32/x
  3. Step 3: Cross multiply
    328,789.58x = 493,145.76 × 92,151.32
  4. Step 4: Simplify right side
    328,789.58x = 45,444,032,736.40
  5. Step 5: Solve for x
    x = 45,444,032,736.40/328,789.58
  6. Step 6: Final answer
    x = 138,216.16

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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.