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Finding the Fourth Proportional to 245,378.64, 368,071.68 and 161,674.92

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Solution

The fourth proportional to 245,378.64, 368,071.68 and 161,674.92 is: 242,514.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,378.64 : 368,071.68 = 161,674.92 : x
  2. Step 2: Convert to fraction form
    245,378.64/368,071.68 = 161,674.92/x
  3. Step 3: Cross multiply
    245,378.64x = 368,071.68 × 161,674.92
  4. Step 4: Simplify right side
    245,378.64x = 59,507,959,418.27
  5. Step 5: Solve for x
    x = 59,507,959,418.27/245,378.64
  6. Step 6: Final answer
    x = 242,514.83

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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.