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Finding the Fourth Proportional to 298,380.88, 411,800.75 and 167,580.06

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Solution

The fourth proportional to 298,380.88, 411,800.75 and 167,580.06 is: 231,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,380.88 : 411,800.75 = 167,580.06 : x
  2. Step 2: Convert to fraction form
    298,380.88/411,800.75 = 167,580.06/x
  3. Step 3: Cross multiply
    298,380.88x = 411,800.75 × 167,580.06
  4. Step 4: Simplify right side
    298,380.88x = 69,009,592,639.32
  5. Step 5: Solve for x
    x = 69,009,592,639.32/298,380.88
  6. Step 6: Final answer
    x = 231,280.21

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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.