Home / 405,122.17-559,079.88-223,845.79

Finding the Fourth Proportional to 405,122.17, 559,079.88 and 223,845.79

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Solution

The fourth proportional to 405,122.17, 559,079.88 and 223,845.79 is: 308,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,122.17 : 559,079.88 = 223,845.79 : x
  2. Step 2: Convert to fraction form
    405,122.17/559,079.88 = 223,845.79/x
  3. Step 3: Cross multiply
    405,122.17x = 559,079.88 × 223,845.79
  4. Step 4: Simplify right side
    405,122.17x = 125,147,676,105.76
  5. Step 5: Solve for x
    x = 125,147,676,105.76/405,122.17
  6. Step 6: Final answer
    x = 308,913.42

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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.