Home / 238,817.79-329,564.91-131,381.40

Finding the Fourth Proportional to 238,817.79, 329,564.91 and 131,381.40

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Solution

The fourth proportional to 238,817.79, 329,564.91 and 131,381.40 is: 181,304.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,817.79 : 329,564.91 = 131,381.40 : x
  2. Step 2: Convert to fraction form
    238,817.79/329,564.91 = 131,381.40/x
  3. Step 3: Cross multiply
    238,817.79x = 329,564.91 × 131,381.40
  4. Step 4: Simplify right side
    238,817.79x = 43,298,699,266.67
  5. Step 5: Solve for x
    x = 43,298,699,266.67/238,817.79
  6. Step 6: Final answer
    x = 181,304.33

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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.