Home / 281,205.02-388,062.96-153,880.62

Finding the Fourth Proportional to 281,205.02, 388,062.96 and 153,880.62

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Solution

The fourth proportional to 281,205.02, 388,062.96 and 153,880.62 is: 212,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,205.02 : 388,062.96 = 153,880.62 : x
  2. Step 2: Convert to fraction form
    281,205.02/388,062.96 = 153,880.62/x
  3. Step 3: Cross multiply
    281,205.02x = 388,062.96 × 153,880.62
  4. Step 4: Simplify right side
    281,205.02x = 59,715,368,883.84
  5. Step 5: Solve for x
    x = 59,715,368,883.84/281,205.02
  6. Step 6: Final answer
    x = 212,355.27

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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.