Home / 281,593.02-388,599.78-154,268.70

Finding the Fourth Proportional to 281,593.02, 388,599.78 and 154,268.70

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Solution

The fourth proportional to 281,593.02, 388,599.78 and 154,268.70 is: 212,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,593.02 : 388,599.78 = 154,268.70 : x
  2. Step 2: Convert to fraction form
    281,593.02/388,599.78 = 154,268.70/x
  3. Step 3: Cross multiply
    281,593.02x = 388,599.78 × 154,268.70
  4. Step 4: Simplify right side
    281,593.02x = 59,948,782,880.89
  5. Step 5: Solve for x
    x = 59,948,782,880.89/281,593.02
  6. Step 6: Final answer
    x = 212,891.58

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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.