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Finding the Fourth Proportional to 661,735.31, 992,603.07 and 163,099.31

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Solution

The fourth proportional to 661,735.31, 992,603.07 and 163,099.31 is: 244,648.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,735.31 : 992,603.07 = 163,099.31 : x
  2. Step 2: Convert to fraction form
    661,735.31/992,603.07 = 163,099.31/x
  3. Step 3: Cross multiply
    661,735.31x = 992,603.07 × 163,099.31
  4. Step 4: Simplify right side
    661,735.31x = 161,892,878,302.39
  5. Step 5: Solve for x
    x = 161,892,878,302.39/661,735.31
  6. Step 6: Final answer
    x = 244,648.99

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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.