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Finding the Fourth Proportional to 298,355.16, 411,731.84 and 162,388.79

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Solution

The fourth proportional to 298,355.16, 411,731.84 and 162,388.79 is: 224,097.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,355.16 : 411,731.84 = 162,388.79 : x
  2. Step 2: Convert to fraction form
    298,355.16/411,731.84 = 162,388.79/x
  3. Step 3: Cross multiply
    298,355.16x = 411,731.84 × 162,388.79
  4. Step 4: Simplify right side
    298,355.16x = 66,860,633,689.25
  5. Step 5: Solve for x
    x = 66,860,633,689.25/298,355.16
  6. Step 6: Final answer
    x = 224,097.46

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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.