Home / 258,408.01-356,603.34-143,685.42

Finding the Fourth Proportional to 258,408.01, 356,603.34 and 143,685.42

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Solution

The fourth proportional to 258,408.01, 356,603.34 and 143,685.42 is: 198,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,408.01 : 356,603.34 = 143,685.42 : x
  2. Step 2: Convert to fraction form
    258,408.01/356,603.34 = 143,685.42/x
  3. Step 3: Cross multiply
    258,408.01x = 356,603.34 × 143,685.42
  4. Step 4: Simplify right side
    258,408.01x = 51,238,700,681.30
  5. Step 5: Solve for x
    x = 51,238,700,681.30/258,408.01
  6. Step 6: Final answer
    x = 198,286.04

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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.