Home / 281,175.59-388,022.27-153,851.15

Finding the Fourth Proportional to 281,175.59, 388,022.27 and 153,851.15

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Solution

The fourth proportional to 281,175.59, 388,022.27 and 153,851.15 is: 212,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,175.59 : 388,022.27 = 153,851.15 : x
  2. Step 2: Convert to fraction form
    281,175.59/388,022.27 = 153,851.15/x
  3. Step 3: Cross multiply
    281,175.59x = 388,022.27 × 153,851.15
  4. Step 4: Simplify right side
    281,175.59x = 59,697,669,755.74
  5. Step 5: Solve for x
    x = 59,697,669,755.74/281,175.59
  6. Step 6: Final answer
    x = 212,314.56

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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.