Home / 238,670.89-329,374.28-131,249.09

Finding the Fourth Proportional to 238,670.89, 329,374.28 and 131,249.09

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Solution

The fourth proportional to 238,670.89, 329,374.28 and 131,249.09 is: 181,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,670.89 : 329,374.28 = 131,249.09 : x
  2. Step 2: Convert to fraction form
    238,670.89/329,374.28 = 131,249.09/x
  3. Step 3: Cross multiply
    238,670.89x = 329,374.28 × 131,249.09
  4. Step 4: Simplify right side
    238,670.89x = 43,230,075,670.96
  5. Step 5: Solve for x
    x = 43,230,075,670.96/238,670.89
  6. Step 6: Final answer
    x = 181,128.40

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1.5x scale

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.