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Finding the Fourth Proportional to 415,846.51, 623,837.03 and 162,989.89

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Solution

The fourth proportional to 415,846.51, 623,837.03 and 162,989.89 is: 244,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,846.51 : 623,837.03 = 162,989.89 : x
  2. Step 2: Convert to fraction form
    415,846.51/623,837.03 = 162,989.89/x
  3. Step 3: Cross multiply
    415,846.51x = 623,837.03 × 162,989.89
  4. Step 4: Simplify right side
    415,846.51x = 101,679,126,523.09
  5. Step 5: Solve for x
    x = 101,679,126,523.09/415,846.51
  6. Step 6: Final answer
    x = 244,511.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.