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Finding the Fourth Proportional to 270,229.48, 372,953.72 and 155,505.77

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Solution

The fourth proportional to 270,229.48, 372,953.72 and 155,505.77 is: 214,619.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,229.48 : 372,953.72 = 155,505.77 : x
  2. Step 2: Convert to fraction form
    270,229.48/372,953.72 = 155,505.77/x
  3. Step 3: Cross multiply
    270,229.48x = 372,953.72 × 155,505.77
  4. Step 4: Simplify right side
    270,229.48x = 57,996,453,926.96
  5. Step 5: Solve for x
    x = 57,996,453,926.96/270,229.48
  6. Step 6: Final answer
    x = 214,619.27

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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.