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Finding the Fourth Proportional to 281,080.16, 421,592.90 and 154,678.85

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Solution

The fourth proportional to 281,080.16, 421,592.90 and 154,678.85 is: 232,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,080.16 : 421,592.90 = 154,678.85 : x
  2. Step 2: Convert to fraction form
    281,080.16/421,592.90 = 154,678.85/x
  3. Step 3: Cross multiply
    281,080.16x = 421,592.90 × 154,678.85
  4. Step 4: Simplify right side
    281,080.16x = 65,211,504,509.85
  5. Step 5: Solve for x
    x = 65,211,504,509.85/281,080.16
  6. Step 6: Final answer
    x = 232,003.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.