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Finding the Fourth Proportional to 305,955.44, 422,215.44 and 168,136.64

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Solution

The fourth proportional to 305,955.44, 422,215.44 and 168,136.64 is: 232,026.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,955.44 : 422,215.44 = 168,136.64 : x
  2. Step 2: Convert to fraction form
    305,955.44/422,215.44 = 168,136.64/x
  3. Step 3: Cross multiply
    305,955.44x = 422,215.44 × 168,136.64
  4. Step 4: Simplify right side
    305,955.44x = 70,989,885,437.72
  5. Step 5: Solve for x
    x = 70,989,885,437.72/305,955.44
  6. Step 6: Final answer
    x = 232,026.88

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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.