Home / 258,727.14-387,629-140,322.96

Finding the Fourth Proportional to 258,727.14, 387,629 and 140,322.96

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Solution

The fourth proportional to 258,727.14, 387,629 and 140,322.96 is: 210,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,727.14 : 387,629 = 140,322.96 : x
  2. Step 2: Convert to fraction form
    258,727.14/387,629 = 140,322.96/x
  3. Step 3: Cross multiply
    258,727.14x = 387,629 × 140,322.96
  4. Step 4: Simplify right side
    258,727.14x = 54,393,248,661.84
  5. Step 5: Solve for x
    x = 54,393,248,661.84/258,727.14
  6. Step 6: Final answer
    x = 210,234.03

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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.