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Finding the Fourth Proportional to 306,349.59, 422,730.03 and 170,361.66

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Solution

The fourth proportional to 306,349.59, 422,730.03 and 170,361.66 is: 235,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,349.59 : 422,730.03 = 170,361.66 : x
  2. Step 2: Convert to fraction form
    306,349.59/422,730.03 = 170,361.66/x
  3. Step 3: Cross multiply
    306,349.59x = 422,730.03 × 170,361.66
  4. Step 4: Simplify right side
    306,349.59x = 72,016,989,642.65
  5. Step 5: Solve for x
    x = 72,016,989,642.65/306,349.59
  6. Step 6: Final answer
    x = 235,081.07

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1.5x scale

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.