Home / 356,312.90-491,712-195,170.64

Finding the Fourth Proportional to 356,312.90, 491,712 and 195,170.64

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Solution

The fourth proportional to 356,312.90, 491,712 and 195,170.64 is: 269,335.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,312.90 : 491,712 = 195,170.64 : x
  2. Step 2: Convert to fraction form
    356,312.90/491,712 = 195,170.64/x
  3. Step 3: Cross multiply
    356,312.90x = 491,712 × 195,170.64
  4. Step 4: Simplify right side
    356,312.90x = 95,967,745,735.68
  5. Step 5: Solve for x
    x = 95,967,745,735.68/356,312.90
  6. Step 6: Final answer
    x = 269,335.59

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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.