Home / 355,380.47-490,377.67-228,228.29

Finding the Fourth Proportional to 355,380.47, 490,377.67 and 228,228.29

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Solution

The fourth proportional to 355,380.47, 490,377.67 and 228,228.29 is: 314,924.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,380.47 : 490,377.67 = 228,228.29 : x
  2. Step 2: Convert to fraction form
    355,380.47/490,377.67 = 228,228.29/x
  3. Step 3: Cross multiply
    355,380.47x = 490,377.67 × 228,228.29
  4. Step 4: Simplify right side
    355,380.47x = 111,918,054,055.83
  5. Step 5: Solve for x
    x = 111,918,054,055.83/355,380.47
  6. Step 6: Final answer
    x = 314,924.61

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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.