Home / 258,524.38-387,783.67-100,863.55

Finding the Fourth Proportional to 258,524.38, 387,783.67 and 100,863.55

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Solution

The fourth proportional to 258,524.38, 387,783.67 and 100,863.55 is: 151,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,524.38 : 387,783.67 = 100,863.55 : x
  2. Step 2: Convert to fraction form
    258,524.38/387,783.67 = 100,863.55/x
  3. Step 3: Cross multiply
    258,524.38x = 387,783.67 × 100,863.55
  4. Step 4: Simplify right side
    258,524.38x = 39,113,237,588.23
  5. Step 5: Solve for x
    x = 39,113,237,588.23/258,524.38
  6. Step 6: Final answer
    x = 151,294.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.