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Finding the Fourth Proportional to 236,026.56, 325,720.38 and 128,596.56

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Solution

The fourth proportional to 236,026.56, 325,720.38 and 128,596.56 is: 177,465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,026.56 : 325,720.38 = 128,596.56 : x
  2. Step 2: Convert to fraction form
    236,026.56/325,720.38 = 128,596.56/x
  3. Step 3: Cross multiply
    236,026.56x = 325,720.38 × 128,596.56
  4. Step 4: Simplify right side
    236,026.56x = 41,886,520,389.89
  5. Step 5: Solve for x
    x = 41,886,520,389.89/236,026.56
  6. Step 6: Final answer
    x = 177,465.28

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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.