Home / 238,638.48-329,312.67-131,207.69

Finding the Fourth Proportional to 238,638.48, 329,312.67 and 131,207.69

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Solution

The fourth proportional to 238,638.48, 329,312.67 and 131,207.69 is: 181,061.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,638.48 : 329,312.67 = 131,207.69 : x
  2. Step 2: Convert to fraction form
    238,638.48/329,312.67 = 131,207.69/x
  3. Step 3: Cross multiply
    238,638.48x = 329,312.67 × 131,207.69
  4. Step 4: Simplify right side
    238,638.48x = 43,208,353,071.87
  5. Step 5: Solve for x
    x = 43,208,353,071.87/238,638.48
  6. Step 6: Final answer
    x = 181,061.97

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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.