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Finding the Fourth Proportional to 281,215.89, 388,258.99 and 250,949.16

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Solution

The fourth proportional to 281,215.89, 388,258.99 and 250,949.16 is: 346,471.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,215.89 : 388,258.99 = 250,949.16 : x
  2. Step 2: Convert to fraction form
    281,215.89/388,258.99 = 250,949.16/x
  3. Step 3: Cross multiply
    281,215.89x = 388,258.99 × 250,949.16
  4. Step 4: Simplify right side
    281,215.89x = 97,433,266,775.58
  5. Step 5: Solve for x
    x = 97,433,266,775.58/281,215.89
  6. Step 6: Final answer
    x = 346,471.41

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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.