Home / 389,051.70-536,934.79-228,042.93

Finding the Fourth Proportional to 389,051.70, 536,934.79 and 228,042.93

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Solution

The fourth proportional to 389,051.70, 536,934.79 and 228,042.93 is: 314,724.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,051.70 : 536,934.79 = 228,042.93 : x
  2. Step 2: Convert to fraction form
    389,051.70/536,934.79 = 228,042.93/x
  3. Step 3: Cross multiply
    389,051.70x = 536,934.79 × 228,042.93
  4. Step 4: Simplify right side
    389,051.70x = 122,444,182,730.54
  5. Step 5: Solve for x
    x = 122,444,182,730.54/389,051.70
  6. Step 6: Final answer
    x = 314,724.71

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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.