Home / 321,075.14-479,660.07-207,832.82

Finding the Fourth Proportional to 321,075.14, 479,660.07 and 207,832.82

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Solution

The fourth proportional to 321,075.14, 479,660.07 and 207,832.82 is: 310,485.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,075.14 : 479,660.07 = 207,832.82 : x
  2. Step 2: Convert to fraction form
    321,075.14/479,660.07 = 207,832.82/x
  3. Step 3: Cross multiply
    321,075.14x = 479,660.07 × 207,832.82
  4. Step 4: Simplify right side
    321,075.14x = 99,689,103,950.33
  5. Step 5: Solve for x
    x = 99,689,103,950.33/321,075.14
  6. Step 6: Final answer
    x = 310,485.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.