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Finding the Fourth Proportional to 286,360.98, 395,130.71 and 165,513.54

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Solution

The fourth proportional to 286,360.98, 395,130.71 and 165,513.54 is: 228,381.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,360.98 : 395,130.71 = 165,513.54 : x
  2. Step 2: Convert to fraction form
    286,360.98/395,130.71 = 165,513.54/x
  3. Step 3: Cross multiply
    286,360.98x = 395,130.71 × 165,513.54
  4. Step 4: Simplify right side
    286,360.98x = 65,399,481,747.25
  5. Step 5: Solve for x
    x = 65,399,481,747.25/286,360.98
  6. Step 6: Final answer
    x = 228,381.26

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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.