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Finding the Fourth Proportional to 358,818.37, 538,228.31 and 336,896.43

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Solution

The fourth proportional to 358,818.37, 538,228.31 and 336,896.43 is: 505,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,818.37 : 538,228.31 = 336,896.43 : x
  2. Step 2: Convert to fraction form
    358,818.37/538,228.31 = 336,896.43/x
  3. Step 3: Cross multiply
    358,818.37x = 538,228.31 × 336,896.43
  4. Step 4: Simplify right side
    358,818.37x = 181,327,196,163.93
  5. Step 5: Solve for x
    x = 181,327,196,163.93/358,818.37
  6. Step 6: Final answer
    x = 505,345.35

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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.