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Finding the Fourth Proportional to 281,410.76, 388,292.82 and 190,840.52

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Solution

The fourth proportional to 281,410.76, 388,292.82 and 190,840.52 is: 263,323.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,410.76 : 388,292.82 = 190,840.52 : x
  2. Step 2: Convert to fraction form
    281,410.76/388,292.82 = 190,840.52/x
  3. Step 3: Cross multiply
    281,410.76x = 388,292.82 × 190,840.52
  4. Step 4: Simplify right side
    281,410.76x = 74,102,003,681.07
  5. Step 5: Solve for x
    x = 74,102,003,681.07/281,410.76
  6. Step 6: Final answer
    x = 263,323.28

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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.