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Finding the Fourth Proportional to 286,075.77, 394,803.06 and 158,751.37

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Solution

The fourth proportional to 286,075.77, 394,803.06 and 158,751.37 is: 219,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,075.77 : 394,803.06 = 158,751.37 : x
  2. Step 2: Convert to fraction form
    286,075.77/394,803.06 = 158,751.37/x
  3. Step 3: Cross multiply
    286,075.77x = 394,803.06 × 158,751.37
  4. Step 4: Simplify right side
    286,075.77x = 62,675,526,655.19
  5. Step 5: Solve for x
    x = 62,675,526,655.19/286,075.77
  6. Step 6: Final answer
    x = 219,087.16

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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.