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Finding the Fourth Proportional to 228,260.84, 315,100.86 and 136,412.54

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Solution

The fourth proportional to 228,260.84, 315,100.86 and 136,412.54 is: 188,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,260.84 : 315,100.86 = 136,412.54 : x
  2. Step 2: Convert to fraction form
    228,260.84/315,100.86 = 136,412.54/x
  3. Step 3: Cross multiply
    228,260.84x = 315,100.86 × 136,412.54
  4. Step 4: Simplify right side
    228,260.84x = 42,983,708,147.02
  5. Step 5: Solve for x
    x = 42,983,708,147.02/228,260.84
  6. Step 6: Final answer
    x = 188,309.60

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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.