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Finding the Fourth Proportional to 245,370.87, 368,056.35 and 76,891.16

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Solution

The fourth proportional to 245,370.87, 368,056.35 and 76,891.16 is: 115,336.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,370.87 : 368,056.35 = 76,891.16 : x
  2. Step 2: Convert to fraction form
    245,370.87/368,056.35 = 76,891.16/x
  3. Step 3: Cross multiply
    245,370.87x = 368,056.35 × 76,891.16
  4. Step 4: Simplify right side
    245,370.87x = 28,300,279,696.87
  5. Step 5: Solve for x
    x = 28,300,279,696.87/245,370.87
  6. Step 6: Final answer
    x = 115,336.75

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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.