Home / 438,826.47-658,172.48-139,268.22

Finding the Fourth Proportional to 438,826.47, 658,172.48 and 139,268.22

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Solution

The fourth proportional to 438,826.47, 658,172.48 and 139,268.22 is: 208,880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,826.47 : 658,172.48 = 139,268.22 : x
  2. Step 2: Convert to fraction form
    438,826.47/658,172.48 = 139,268.22/x
  3. Step 3: Cross multiply
    438,826.47x = 658,172.48 × 139,268.22
  4. Step 4: Simplify right side
    438,826.47x = 91,662,509,046.24
  5. Step 5: Solve for x
    x = 91,662,509,046.24/438,826.47
  6. Step 6: Final answer
    x = 208,880.99

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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.