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Finding the Fourth Proportional to 281,798.88, 388,882.26 and 154,476.60

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Solution

The fourth proportional to 281,798.88, 388,882.26 and 154,476.60 is: 213,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,798.88 : 388,882.26 = 154,476.60 : x
  2. Step 2: Convert to fraction form
    281,798.88/388,882.26 = 154,476.60/x
  3. Step 3: Cross multiply
    281,798.88x = 388,882.26 × 154,476.60
  4. Step 4: Simplify right side
    281,798.88x = 60,073,209,325.12
  5. Step 5: Solve for x
    x = 60,073,209,325.12/281,798.88
  6. Step 6: Final answer
    x = 213,177.60

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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.