Home / 389,051.82-536,934.96-228,043.06

Finding the Fourth Proportional to 389,051.82, 536,934.96 and 228,043.06

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Solution

The fourth proportional to 389,051.82, 536,934.96 and 228,043.06 is: 314,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,051.82 : 536,934.96 = 228,043.06 : x
  2. Step 2: Convert to fraction form
    389,051.82/536,934.96 = 228,043.06/x
  3. Step 3: Cross multiply
    389,051.82x = 536,934.96 × 228,043.06
  4. Step 4: Simplify right side
    389,051.82x = 122,444,289,957.04
  5. Step 5: Solve for x
    x = 122,444,289,957.04/389,051.82
  6. Step 6: Final answer
    x = 314,724.89

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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.