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Finding the Fourth Proportional to 270,164.18, 405,257.21 and 101,666.77

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Solution

The fourth proportional to 270,164.18, 405,257.21 and 101,666.77 is: 152,504.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,164.18 : 405,257.21 = 101,666.77 : x
  2. Step 2: Convert to fraction form
    270,164.18/405,257.21 = 101,666.77/x
  3. Step 3: Cross multiply
    270,164.18x = 405,257.21 × 101,666.77
  4. Step 4: Simplify right side
    270,164.18x = 41,201,190,419.69
  5. Step 5: Solve for x
    x = 41,201,190,419.69/270,164.18
  6. Step 6: Final answer
    x = 152,504.27

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1.5x scale

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.