Home / 253,021.98-349,170.03-138,301.38

Finding the Fourth Proportional to 253,021.98, 349,170.03 and 138,301.38

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Solution

The fourth proportional to 253,021.98, 349,170.03 and 138,301.38 is: 190,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,021.98 : 349,170.03 = 138,301.38 : x
  2. Step 2: Convert to fraction form
    253,021.98/349,170.03 = 138,301.38/x
  3. Step 3: Cross multiply
    253,021.98x = 349,170.03 × 138,301.38
  4. Step 4: Simplify right side
    253,021.98x = 48,290,697,003.64
  5. Step 5: Solve for x
    x = 48,290,697,003.64/253,021.98
  6. Step 6: Final answer
    x = 190,855.74

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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.