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Finding the Fourth Proportional to 253,923.39, 380,853.93 and 147,365.33

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Solution

The fourth proportional to 253,923.39, 380,853.93 and 147,365.33 is: 221,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,923.39 : 380,853.93 = 147,365.33 : x
  2. Step 2: Convert to fraction form
    253,923.39/380,853.93 = 147,365.33/x
  3. Step 3: Cross multiply
    253,923.39x = 380,853.93 × 147,365.33
  4. Step 4: Simplify right side
    253,923.39x = 56,124,663,724.60
  5. Step 5: Solve for x
    x = 56,124,663,724.60/253,923.39
  6. Step 6: Final answer
    x = 221,029.91

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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.