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Finding the Fourth Proportional to 395,250.96, 545,442.63 and 213,958.23

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Solution

The fourth proportional to 395,250.96, 545,442.63 and 213,958.23 is: 295,260.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,250.96 : 545,442.63 = 213,958.23 : x
  2. Step 2: Convert to fraction form
    395,250.96/545,442.63 = 213,958.23/x
  3. Step 3: Cross multiply
    395,250.96x = 545,442.63 × 213,958.23
  4. Step 4: Simplify right side
    395,250.96x = 116,701,939,681.35
  5. Step 5: Solve for x
    x = 116,701,939,681.35/395,250.96
  6. Step 6: Final answer
    x = 295,260.36

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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.