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Finding the Fourth Proportional to 298,245.16, 411,565.93 and 162,279.64

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Solution

The fourth proportional to 298,245.16, 411,565.93 and 162,279.64 is: 223,939.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,245.16 : 411,565.93 = 162,279.64 : x
  2. Step 2: Convert to fraction form
    298,245.16/411,565.93 = 162,279.64/x
  3. Step 3: Cross multiply
    298,245.16x = 411,565.93 × 162,279.64
  4. Step 4: Simplify right side
    298,245.16x = 66,788,770,956.67
  5. Step 5: Solve for x
    x = 66,788,770,956.67/298,245.16
  6. Step 6: Final answer
    x = 223,939.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.