Home / 287,075.23-395,753.16-201,928.03

Finding the Fourth Proportional to 287,075.23, 395,753.16 and 201,928.03

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Solution

The fourth proportional to 287,075.23, 395,753.16 and 201,928.03 is: 278,371.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,075.23 : 395,753.16 = 201,928.03 : x
  2. Step 2: Convert to fraction form
    287,075.23/395,753.16 = 201,928.03/x
  3. Step 3: Cross multiply
    287,075.23x = 395,753.16 × 201,928.03
  4. Step 4: Simplify right side
    287,075.23x = 79,913,655,965.07
  5. Step 5: Solve for x
    x = 79,913,655,965.07/287,075.23
  6. Step 6: Final answer
    x = 278,371.83

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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.