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Finding the Fourth Proportional to 270,254.22, 372,912.75 and 155,489.28

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Solution

The fourth proportional to 270,254.22, 372,912.75 and 155,489.28 is: 214,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,254.22 : 372,912.75 = 155,489.28 : x
  2. Step 2: Convert to fraction form
    270,254.22/372,912.75 = 155,489.28/x
  3. Step 3: Cross multiply
    270,254.22x = 372,912.75 × 155,489.28
  4. Step 4: Simplify right side
    270,254.22x = 57,983,935,000.32
  5. Step 5: Solve for x
    x = 57,983,935,000.32/270,254.22
  6. Step 6: Final answer
    x = 214,553.30

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1.5x scale

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.