Home / 395,619.05-545,953.50-214,335.45

Finding the Fourth Proportional to 395,619.05, 545,953.50 and 214,335.45

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Solution

The fourth proportional to 395,619.05, 545,953.50 and 214,335.45 is: 295,782.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,619.05 : 545,953.50 = 214,335.45 : x
  2. Step 2: Convert to fraction form
    395,619.05/545,953.50 = 214,335.45/x
  3. Step 3: Cross multiply
    395,619.05x = 545,953.50 × 214,335.45
  4. Step 4: Simplify right side
    395,619.05x = 117,017,189,101.58
  5. Step 5: Solve for x
    x = 117,017,189,101.58/395,619.05
  6. Step 6: Final answer
    x = 295,782.49

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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.