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Finding the Fourth Proportional to 178,984.67, 246,992.20 and 98,407.40

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Solution

The fourth proportional to 178,984.67, 246,992.20 and 98,407.40 is: 135,798.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,984.67 : 246,992.20 = 98,407.40 : x
  2. Step 2: Convert to fraction form
    178,984.67/246,992.20 = 98,407.40/x
  3. Step 3: Cross multiply
    178,984.67x = 246,992.20 × 98,407.40
  4. Step 4: Simplify right side
    178,984.67x = 24,305,858,741.30
  5. Step 5: Solve for x
    x = 24,305,858,741.30/178,984.67
  6. Step 6: Final answer
    x = 135,798.55

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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.