Home / 395,105.48-545,246.91-213,817.36

Finding the Fourth Proportional to 395,105.48, 545,246.91 and 213,817.36

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Solution

The fourth proportional to 395,105.48, 545,246.91 and 213,817.36 is: 295,068.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,105.48 : 545,246.91 = 213,817.36 : x
  2. Step 2: Convert to fraction form
    395,105.48/545,246.91 = 213,817.36/x
  3. Step 3: Cross multiply
    395,105.48x = 545,246.91 × 213,817.36
  4. Step 4: Simplify right side
    395,105.48x = 116,583,254,844.36
  5. Step 5: Solve for x
    x = 116,583,254,844.36/395,105.48
  6. Step 6: Final answer
    x = 295,068.69

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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.