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Finding the Fourth Proportional to 281,499.96, 388,476.36 and 154,174.44

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Solution

The fourth proportional to 281,499.96, 388,476.36 and 154,174.44 is: 212,764.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,499.96 : 388,476.36 = 154,174.44 : x
  2. Step 2: Convert to fraction form
    281,499.96/388,476.36 = 154,174.44/x
  3. Step 3: Cross multiply
    281,499.96x = 388,476.36 × 154,174.44
  4. Step 4: Simplify right side
    281,499.96x = 59,893,125,256.24
  5. Step 5: Solve for x
    x = 59,893,125,256.24/281,499.96
  6. Step 6: Final answer
    x = 212,764.24

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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.