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Finding the Fourth Proportional to 270,090.85, 372,732.89 and 149,239.96

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Solution

The fourth proportional to 270,090.85, 372,732.89 and 149,239.96 is: 205,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,090.85 : 372,732.89 = 149,239.96 : x
  2. Step 2: Convert to fraction form
    270,090.85/372,732.89 = 149,239.96/x
  3. Step 3: Cross multiply
    270,090.85x = 372,732.89 × 149,239.96
  4. Step 4: Simplify right side
    270,090.85x = 55,626,642,526.12
  5. Step 5: Solve for x
    x = 55,626,642,526.12/270,090.85
  6. Step 6: Final answer
    x = 205,955.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.