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Finding the Fourth Proportional to 277,539.51, 382,996.83 and 155,028.63

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Solution

The fourth proportional to 277,539.51, 382,996.83 and 155,028.63 is: 213,935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,539.51 : 382,996.83 = 155,028.63 : x
  2. Step 2: Convert to fraction form
    277,539.51/382,996.83 = 155,028.63/x
  3. Step 3: Cross multiply
    277,539.51x = 382,996.83 × 155,028.63
  4. Step 4: Simplify right side
    277,539.51x = 59,375,473,849.24
  5. Step 5: Solve for x
    x = 59,375,473,849.24/277,539.51
  6. Step 6: Final answer
    x = 213,935.21

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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.