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Finding the Fourth Proportional to 338,871.37, 507,976.57 and 161,330.71

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Solution

The fourth proportional to 338,871.37, 507,976.57 and 161,330.71 is: 241,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,871.37 : 507,976.57 = 161,330.71 : x
  2. Step 2: Convert to fraction form
    338,871.37/507,976.57 = 161,330.71/x
  3. Step 3: Cross multiply
    338,871.37x = 507,976.57 × 161,330.71
  4. Step 4: Simplify right side
    338,871.37x = 81,952,219,028.20
  5. Step 5: Solve for x
    x = 81,952,219,028.20/338,871.37
  6. Step 6: Final answer
    x = 241,838.72

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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.