Home / 286,178.78-394,945.38-165,325.16

Finding the Fourth Proportional to 286,178.78, 394,945.38 and 165,325.16

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Solution

The fourth proportional to 286,178.78, 394,945.38 and 165,325.16 is: 228,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,178.78 : 394,945.38 = 165,325.16 : x
  2. Step 2: Convert to fraction form
    286,178.78/394,945.38 = 165,325.16/x
  3. Step 3: Cross multiply
    286,178.78x = 394,945.38 × 165,325.16
  4. Step 4: Simplify right side
    286,178.78x = 65,294,406,165.03
  5. Step 5: Solve for x
    x = 65,294,406,165.03/286,178.78
  6. Step 6: Final answer
    x = 228,159.50

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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.