Home / 261,782.96-391,853.91-180,254.30

Finding the Fourth Proportional to 261,782.96, 391,853.91 and 180,254.30

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Solution

The fourth proportional to 261,782.96, 391,853.91 and 180,254.30 is: 269,816.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,782.96 : 391,853.91 = 180,254.30 : x
  2. Step 2: Convert to fraction form
    261,782.96/391,853.91 = 180,254.30/x
  3. Step 3: Cross multiply
    261,782.96x = 391,853.91 × 180,254.30
  4. Step 4: Simplify right side
    261,782.96x = 70,633,352,249.31
  5. Step 5: Solve for x
    x = 70,633,352,249.31/261,782.96
  6. Step 6: Final answer
    x = 269,816.46

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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.