Home / 258,541.20-387,811.80-179,809.20

Finding the Fourth Proportional to 258,541.20, 387,811.80 and 179,809.20

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Solution

The fourth proportional to 258,541.20, 387,811.80 and 179,809.20 is: 269,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,541.20 : 387,811.80 = 179,809.20 : x
  2. Step 2: Convert to fraction form
    258,541.20/387,811.80 = 179,809.20/x
  3. Step 3: Cross multiply
    258,541.20x = 387,811.80 × 179,809.20
  4. Step 4: Simplify right side
    258,541.20x = 69,732,129,508.56
  5. Step 5: Solve for x
    x = 69,732,129,508.56/258,541.20
  6. Step 6: Final answer
    x = 269,713.80

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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.