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Finding the Fourth Proportional to 277,662.09, 382,978.82 and 170,274.93

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Solution

The fourth proportional to 277,662.09, 382,978.82 and 170,274.93 is: 234,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,662.09 : 382,978.82 = 170,274.93 : x
  2. Step 2: Convert to fraction form
    277,662.09/382,978.82 = 170,274.93/x
  3. Step 3: Cross multiply
    277,662.09x = 382,978.82 × 170,274.93
  4. Step 4: Simplify right side
    277,662.09x = 65,211,689,852.09
  5. Step 5: Solve for x
    x = 65,211,689,852.09/277,662.09
  6. Step 6: Final answer
    x = 234,859.90

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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.