Home / 212,228.60-317,969.21-199,586.12

Finding the Fourth Proportional to 212,228.60, 317,969.21 and 199,586.12

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Solution

The fourth proportional to 212,228.60, 317,969.21 and 199,586.12 is: 299,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,228.60 : 317,969.21 = 199,586.12 : x
  2. Step 2: Convert to fraction form
    212,228.60/317,969.21 = 199,586.12/x
  3. Step 3: Cross multiply
    212,228.60x = 317,969.21 × 199,586.12
  4. Step 4: Simplify right side
    212,228.60x = 63,462,239,812.48
  5. Step 5: Solve for x
    x = 63,462,239,812.48/212,228.60
  6. Step 6: Final answer
    x = 299,027.74

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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.