Home / 811,096.60-1,216,713.94-212,056.80

Finding the Fourth Proportional to 811,096.60, 1,216,713.94 and 212,056.80

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Solution

The fourth proportional to 811,096.60, 1,216,713.94 and 212,056.80 is: 318,103.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,096.60 : 1,216,713.94 = 212,056.80 : x
  2. Step 2: Convert to fraction form
    811,096.60/1,216,713.94 = 212,056.80/x
  3. Step 3: Cross multiply
    811,096.60x = 1,216,713.94 × 212,056.80
  4. Step 4: Simplify right side
    811,096.60x = 258,012,464,631.79
  5. Step 5: Solve for x
    x = 258,012,464,631.79/811,096.60
  6. Step 6: Final answer
    x = 318,103.25

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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.