Home / 355,999.23-491,279.54-194,864.49

Finding the Fourth Proportional to 355,999.23, 491,279.54 and 194,864.49

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Solution

The fourth proportional to 355,999.23, 491,279.54 and 194,864.49 is: 268,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,999.23 : 491,279.54 = 194,864.49 : x
  2. Step 2: Convert to fraction form
    355,999.23/491,279.54 = 194,864.49/x
  3. Step 3: Cross multiply
    355,999.23x = 491,279.54 × 194,864.49
  4. Step 4: Simplify right side
    355,999.23x = 95,732,936,035.21
  5. Step 5: Solve for x
    x = 95,732,936,035.21/355,999.23
  6. Step 6: Final answer
    x = 268,913.32

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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.