Home / 253,529.25-380,667.69-141,428.49

Finding the Fourth Proportional to 253,529.25, 380,667.69 and 141,428.49

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Solution

The fourth proportional to 253,529.25, 380,667.69 and 141,428.49 is: 212,351.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,529.25 : 380,667.69 = 141,428.49 : x
  2. Step 2: Convert to fraction form
    253,529.25/380,667.69 = 141,428.49/x
  3. Step 3: Cross multiply
    253,529.25x = 380,667.69 × 141,428.49
  4. Step 4: Simplify right side
    253,529.25x = 53,837,256,588.49
  5. Step 5: Solve for x
    x = 53,837,256,588.49/253,529.25
  6. Step 6: Final answer
    x = 212,351.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.