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Finding the Fourth Proportional to 395,181, 545,200.94 and 259,289.93

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Solution

The fourth proportional to 395,181, 545,200.94 and 259,289.93 is: 357,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,181 : 545,200.94 = 259,289.93 : x
  2. Step 2: Convert to fraction form
    395,181/545,200.94 = 259,289.93/x
  3. Step 3: Cross multiply
    395,181x = 545,200.94 × 259,289.93
  4. Step 4: Simplify right side
    395,181x = 141,365,115,579.76
  5. Step 5: Solve for x
    x = 141,365,115,579.76/395,181
  6. Step 6: Final answer
    x = 357,722.45

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1.5x scale

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.