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Finding the Fourth Proportional to 231,136.75, 318,873.73 and 140,478.11

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Solution

The fourth proportional to 231,136.75, 318,873.73 and 140,478.11 is: 193,802.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,136.75 : 318,873.73 = 140,478.11 : x
  2. Step 2: Convert to fraction form
    231,136.75/318,873.73 = 140,478.11/x
  3. Step 3: Cross multiply
    231,136.75x = 318,873.73 × 140,478.11
  4. Step 4: Simplify right side
    231,136.75x = 44,794,776,622.29
  5. Step 5: Solve for x
    x = 44,794,776,622.29/231,136.75
  6. Step 6: Final answer
    x = 193,802.06

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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.