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Finding the Fourth Proportional to 245,319.63, 367,979.44 and 65,405.61

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Solution

The fourth proportional to 245,319.63, 367,979.44 and 65,405.61 is: 98,108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,319.63 : 367,979.44 = 65,405.61 : x
  2. Step 2: Convert to fraction form
    245,319.63/367,979.44 = 65,405.61/x
  3. Step 3: Cross multiply
    245,319.63x = 367,979.44 × 65,405.61
  4. Step 4: Simplify right side
    245,319.63x = 24,067,919,740.66
  5. Step 5: Solve for x
    x = 24,067,919,740.66/245,319.63
  6. Step 6: Final answer
    x = 98,108.41

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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.