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Finding the Fourth Proportional to 395,660.52, 545,812.44 and 259,675.60

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Solution

The fourth proportional to 395,660.52, 545,812.44 and 259,675.60 is: 358,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,660.52 : 545,812.44 = 259,675.60 : x
  2. Step 2: Convert to fraction form
    395,660.52/545,812.44 = 259,675.60/x
  3. Step 3: Cross multiply
    395,660.52x = 545,812.44 × 259,675.60
  4. Step 4: Simplify right side
    395,660.52x = 141,734,172,844.46
  5. Step 5: Solve for x
    x = 141,734,172,844.46/395,660.52
  6. Step 6: Final answer
    x = 358,221.67

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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.