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Finding the Fourth Proportional to 245,359.94, 368,039.46 and 76,893.18

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Solution

The fourth proportional to 245,359.94, 368,039.46 and 76,893.18 is: 115,339.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,359.94 : 368,039.46 = 76,893.18 : x
  2. Step 2: Convert to fraction form
    245,359.94/368,039.46 = 76,893.18/x
  3. Step 3: Cross multiply
    245,359.94x = 368,039.46 × 76,893.18
  4. Step 4: Simplify right side
    245,359.94x = 28,299,724,444.88
  5. Step 5: Solve for x
    x = 28,299,724,444.88/245,359.94
  6. Step 6: Final answer
    x = 115,339.63

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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.