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Finding the Fourth Proportional to 279,357.45, 419,033.93 and 185,009.87

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Solution

The fourth proportional to 279,357.45, 419,033.93 and 185,009.87 is: 277,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,357.45 : 419,033.93 = 185,009.87 : x
  2. Step 2: Convert to fraction form
    279,357.45/419,033.93 = 185,009.87/x
  3. Step 3: Cross multiply
    279,357.45x = 419,033.93 × 185,009.87
  4. Step 4: Simplify right side
    279,357.45x = 77,525,409,894.67
  5. Step 5: Solve for x
    x = 77,525,409,894.67/279,357.45
  6. Step 6: Final answer
    x = 277,513.31

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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.