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Finding the Fourth Proportional to 387,597.96, 535,031.34 and 226,505.37

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Solution

The fourth proportional to 387,597.96, 535,031.34 and 226,505.37 is: 312,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,597.96 : 535,031.34 = 226,505.37 : x
  2. Step 2: Convert to fraction form
    387,597.96/535,031.34 = 226,505.37/x
  3. Step 3: Cross multiply
    387,597.96x = 535,031.34 × 226,505.37
  4. Step 4: Simplify right side
    387,597.96x = 121,187,468,772.53
  5. Step 5: Solve for x
    x = 121,187,468,772.53/387,597.96
  6. Step 6: Final answer
    x = 312,662.81

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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.