Home / 395,289.22-545,495.22-213,996.36

Finding the Fourth Proportional to 395,289.22, 545,495.22 and 213,996.36

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Solution

The fourth proportional to 395,289.22, 545,495.22 and 213,996.36 is: 295,312.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,289.22 : 545,495.22 = 213,996.36 : x
  2. Step 2: Convert to fraction form
    395,289.22/545,495.22 = 213,996.36/x
  3. Step 3: Cross multiply
    395,289.22x = 545,495.22 × 213,996.36
  4. Step 4: Simplify right side
    395,289.22x = 116,733,991,477.40
  5. Step 5: Solve for x
    x = 116,733,991,477.40/395,289.22
  6. Step 6: Final answer
    x = 295,312.86

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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.