Home / 306,380.04-422,798.38-170,411.06

Finding the Fourth Proportional to 306,380.04, 422,798.38 and 170,411.06

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Solution

The fourth proportional to 306,380.04, 422,798.38 and 170,411.06 is: 235,163.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,380.04 : 422,798.38 = 170,411.06 : x
  2. Step 2: Convert to fraction form
    306,380.04/422,798.38 = 170,411.06/x
  3. Step 3: Cross multiply
    306,380.04x = 422,798.38 × 170,411.06
  4. Step 4: Simplify right side
    306,380.04x = 72,049,520,102.08
  5. Step 5: Solve for x
    x = 72,049,520,102.08/306,380.04
  6. Step 6: Final answer
    x = 235,163.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.