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Finding the Fourth Proportional to 245,392.31, 368,093.08 and 76,908.91

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Solution

The fourth proportional to 245,392.31, 368,093.08 and 76,908.91 is: 115,364.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,392.31 : 368,093.08 = 76,908.91 : x
  2. Step 2: Convert to fraction form
    245,392.31/368,093.08 = 76,908.91/x
  3. Step 3: Cross multiply
    245,392.31x = 368,093.08 × 76,908.91
  4. Step 4: Simplify right side
    245,392.31x = 28,309,637,643.73
  5. Step 5: Solve for x
    x = 28,309,637,643.73/245,392.31
  6. Step 6: Final answer
    x = 115,364.81

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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.