Home / 227,638.20-341,457.30-212,086.20

Finding the Fourth Proportional to 227,638.20, 341,457.30 and 212,086.20

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Solution

The fourth proportional to 227,638.20, 341,457.30 and 212,086.20 is: 318,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,638.20 : 341,457.30 = 212,086.20 : x
  2. Step 2: Convert to fraction form
    227,638.20/341,457.30 = 212,086.20/x
  3. Step 3: Cross multiply
    227,638.20x = 341,457.30 × 212,086.20
  4. Step 4: Simplify right side
    227,638.20x = 72,418,381,219.26
  5. Step 5: Solve for x
    x = 72,418,381,219.26/227,638.20
  6. Step 6: Final answer
    x = 318,129.30

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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.