Home / 258,946.88-388,392.60-69,426.25

Finding the Fourth Proportional to 258,946.88, 388,392.60 and 69,426.25

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Solution

The fourth proportional to 258,946.88, 388,392.60 and 69,426.25 is: 104,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,946.88 : 388,392.60 = 69,426.25 : x
  2. Step 2: Convert to fraction form
    258,946.88/388,392.60 = 69,426.25/x
  3. Step 3: Cross multiply
    258,946.88x = 388,392.60 × 69,426.25
  4. Step 4: Simplify right side
    258,946.88x = 26,964,641,035.12
  5. Step 5: Solve for x
    x = 26,964,641,035.12/258,946.88
  6. Step 6: Final answer
    x = 104,131.94

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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.