Home / 281,271.61-388,139.92-153,922.60

Finding the Fourth Proportional to 281,271.61, 388,139.92 and 153,922.60

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Solution

The fourth proportional to 281,271.61, 388,139.92 and 153,922.60 is: 212,405.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,271.61 : 388,139.92 = 153,922.60 : x
  2. Step 2: Convert to fraction form
    281,271.61/388,139.92 = 153,922.60/x
  3. Step 3: Cross multiply
    281,271.61x = 388,139.92 × 153,922.60
  4. Step 4: Simplify right side
    281,271.61x = 59,743,505,650.19
  5. Step 5: Solve for x
    x = 59,743,505,650.19/281,271.61
  6. Step 6: Final answer
    x = 212,405.03

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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.