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Finding the Fourth Proportional to 173,005.81, 259,298.28 and 122,419.42

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Solution

The fourth proportional to 173,005.81, 259,298.28 and 122,419.42 is: 183,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,005.81 : 259,298.28 = 122,419.42 : x
  2. Step 2: Convert to fraction form
    173,005.81/259,298.28 = 122,419.42/x
  3. Step 3: Cross multiply
    173,005.81x = 259,298.28 × 122,419.42
  4. Step 4: Simplify right side
    173,005.81x = 31,743,144,396.35
  5. Step 5: Solve for x
    x = 31,743,144,396.35/173,005.81
  6. Step 6: Final answer
    x = 183,480.22

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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.