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Finding the Fourth Proportional to 281,133.30, 421,732.74 and 281,133.30

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Solution

The fourth proportional to 281,133.30, 421,732.74 and 281,133.30 is: 421,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,133.30 : 421,732.74 = 281,133.30 : x
  2. Step 2: Convert to fraction form
    281,133.30/421,732.74 = 281,133.30/x
  3. Step 3: Cross multiply
    281,133.30x = 421,732.74 × 281,133.30
  4. Step 4: Simplify right side
    281,133.30x = 118,563,116,914.24
  5. Step 5: Solve for x
    x = 118,563,116,914.24/281,133.30
  6. Step 6: Final answer
    x = 421,732.74

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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.