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Finding the Fourth Proportional to 255,383.88, 352,376.28 and 147,947.51

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Solution

The fourth proportional to 255,383.88, 352,376.28 and 147,947.51 is: 204,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,383.88 : 352,376.28 = 147,947.51 : x
  2. Step 2: Convert to fraction form
    255,383.88/352,376.28 = 147,947.51/x
  3. Step 3: Cross multiply
    255,383.88x = 352,376.28 × 147,947.51
  4. Step 4: Simplify right side
    255,383.88x = 52,133,191,447.18
  5. Step 5: Solve for x
    x = 52,133,191,447.18/255,383.88
  6. Step 6: Final answer
    x = 204,136.58

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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.