Home / 426,453.07-639,988.26-166,828.97

Finding the Fourth Proportional to 426,453.07, 639,988.26 and 166,828.97

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Solution

The fourth proportional to 426,453.07, 639,988.26 and 166,828.97 is: 250,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,453.07 : 639,988.26 = 166,828.97 : x
  2. Step 2: Convert to fraction form
    426,453.07/639,988.26 = 166,828.97/x
  3. Step 3: Cross multiply
    426,453.07x = 639,988.26 × 166,828.97
  4. Step 4: Simplify right side
    426,453.07x = 106,768,582,227.89
  5. Step 5: Solve for x
    x = 106,768,582,227.89/426,453.07
  6. Step 6: Final answer
    x = 250,364.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.