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Finding the Fourth Proportional to 270,090.20, 404,811.30 and 112,237.40

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Solution

The fourth proportional to 270,090.20, 404,811.30 and 112,237.40 is: 168,221.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,090.20 : 404,811.30 = 112,237.40 : x
  2. Step 2: Convert to fraction form
    270,090.20/404,811.30 = 112,237.40/x
  3. Step 3: Cross multiply
    270,090.20x = 404,811.30 × 112,237.40
  4. Step 4: Simplify right side
    270,090.20x = 45,434,967,802.62
  5. Step 5: Solve for x
    x = 45,434,967,802.62/270,090.20
  6. Step 6: Final answer
    x = 168,221.46

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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.