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Finding the Fourth Proportional to 219,833.37, 303,402.66 and 139,268.37

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Solution

The fourth proportional to 219,833.37, 303,402.66 and 139,268.37 is: 192,211.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,833.37 : 303,402.66 = 139,268.37 : x
  2. Step 2: Convert to fraction form
    219,833.37/303,402.66 = 139,268.37/x
  3. Step 3: Cross multiply
    219,833.37x = 303,402.66 × 139,268.37
  4. Step 4: Simplify right side
    219,833.37x = 42,254,393,911.86
  5. Step 5: Solve for x
    x = 42,254,393,911.86/219,833.37
  6. Step 6: Final answer
    x = 192,211.01

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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.