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Finding the Fourth Proportional to 245,370.92, 368,056.47 and 76,904.32

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Solution

The fourth proportional to 245,370.92, 368,056.47 and 76,904.32 is: 115,356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,370.92 : 368,056.47 = 76,904.32 : x
  2. Step 2: Convert to fraction form
    245,370.92/368,056.47 = 76,904.32/x
  3. Step 3: Cross multiply
    245,370.92x = 368,056.47 × 76,904.32
  4. Step 4: Simplify right side
    245,370.92x = 28,305,132,546.95
  5. Step 5: Solve for x
    x = 28,305,132,546.95/245,370.92
  6. Step 6: Final answer
    x = 115,356.51

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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.