Home / 286,391.25-395,176.02-165,509.21

Finding the Fourth Proportional to 286,391.25, 395,176.02 and 165,509.21

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Solution

The fourth proportional to 286,391.25, 395,176.02 and 165,509.21 is: 228,377.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,391.25 : 395,176.02 = 165,509.21 : x
  2. Step 2: Convert to fraction form
    286,391.25/395,176.02 = 165,509.21/x
  3. Step 3: Cross multiply
    286,391.25x = 395,176.02 × 165,509.21
  4. Step 4: Simplify right side
    286,391.25x = 65,405,270,881.14
  5. Step 5: Solve for x
    x = 65,405,270,881.14/286,391.25
  6. Step 6: Final answer
    x = 228,377.34

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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.