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Finding the Fourth Proportional to 270,170.33, 405,300.05 and 112,409.87

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Solution

The fourth proportional to 270,170.33, 405,300.05 and 112,409.87 is: 168,633.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,170.33 : 405,300.05 = 112,409.87 : x
  2. Step 2: Convert to fraction form
    270,170.33/405,300.05 = 112,409.87/x
  3. Step 3: Cross multiply
    270,170.33x = 405,300.05 × 112,409.87
  4. Step 4: Simplify right side
    270,170.33x = 45,559,724,862.82
  5. Step 5: Solve for x
    x = 45,559,724,862.82/270,170.33
  6. Step 6: Final answer
    x = 168,633.34

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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.