Home / 281,766.24-388,836.72-154,442.40

Finding the Fourth Proportional to 281,766.24, 388,836.72 and 154,442.40

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Solution

The fourth proportional to 281,766.24, 388,836.72 and 154,442.40 is: 213,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,766.24 : 388,836.72 = 154,442.40 : x
  2. Step 2: Convert to fraction form
    281,766.24/388,836.72 = 154,442.40/x
  3. Step 3: Cross multiply
    281,766.24x = 388,836.72 × 154,442.40
  4. Step 4: Simplify right side
    281,766.24x = 60,052,876,244.93
  5. Step 5: Solve for x
    x = 60,052,876,244.93/281,766.24
  6. Step 6: Final answer
    x = 213,130.13

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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.