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Finding the Fourth Proportional to 178,560.37, 246,420.40 and 97,990.79

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Solution

The fourth proportional to 178,560.37, 246,420.40 and 97,990.79 is: 135,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,560.37 : 246,420.40 = 97,990.79 : x
  2. Step 2: Convert to fraction form
    178,560.37/246,420.40 = 97,990.79/x
  3. Step 3: Cross multiply
    178,560.37x = 246,420.40 × 97,990.79
  4. Step 4: Simplify right side
    178,560.37x = 24,146,929,668.12
  5. Step 5: Solve for x
    x = 24,146,929,668.12/178,560.37
  6. Step 6: Final answer
    x = 135,231.18

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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.