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Finding the Fourth Proportional to 395,659.52, 545,811.06 and 259,674.60

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Solution

The fourth proportional to 395,659.52, 545,811.06 and 259,674.60 is: 358,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,659.52 : 545,811.06 = 259,674.60 : x
  2. Step 2: Convert to fraction form
    395,659.52/545,811.06 = 259,674.60/x
  3. Step 3: Cross multiply
    395,659.52x = 545,811.06 × 259,674.60
  4. Step 4: Simplify right side
    395,659.52x = 141,733,267,608.06
  5. Step 5: Solve for x
    x = 141,733,267,608.06/395,659.52
  6. Step 6: Final answer
    x = 358,220.29

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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.