Home / 395,612.19-545,941.89-225,845.91

Finding the Fourth Proportional to 395,612.19, 545,941.89 and 225,845.91

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Solution

The fourth proportional to 395,612.19, 545,941.89 and 225,845.91 is: 311,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,612.19 : 545,941.89 = 225,845.91 : x
  2. Step 2: Convert to fraction form
    395,612.19/545,941.89 = 225,845.91/x
  3. Step 3: Cross multiply
    395,612.19x = 545,941.89 × 225,845.91
  4. Step 4: Simplify right side
    395,612.19x = 123,298,742,954.17
  5. Step 5: Solve for x
    x = 123,298,742,954.17/395,612.19
  6. Step 6: Final answer
    x = 311,665.68

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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.