Home / 285,858.48-428,216.02-171,943.39

Finding the Fourth Proportional to 285,858.48, 428,216.02 and 171,943.39

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Solution

The fourth proportional to 285,858.48, 428,216.02 and 171,943.39 is: 257,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,858.48 : 428,216.02 = 171,943.39 : x
  2. Step 2: Convert to fraction form
    285,858.48/428,216.02 = 171,943.39/x
  3. Step 3: Cross multiply
    285,858.48x = 428,216.02 × 171,943.39
  4. Step 4: Simplify right side
    285,858.48x = 73,628,913,060.57
  5. Step 5: Solve for x
    x = 73,628,913,060.57/285,858.48
  6. Step 6: Final answer
    x = 257,571.21

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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.