Home / 391,185.12-587,166.48-180,870.24

Finding the Fourth Proportional to 391,185.12, 587,166.48 and 180,870.24

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Solution

The fourth proportional to 391,185.12, 587,166.48 and 180,870.24 is: 271,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,185.12 : 587,166.48 = 180,870.24 : x
  2. Step 2: Convert to fraction form
    391,185.12/587,166.48 = 180,870.24/x
  3. Step 3: Cross multiply
    391,185.12x = 587,166.48 × 180,870.24
  4. Step 4: Simplify right side
    391,185.12x = 106,200,942,157.56
  5. Step 5: Solve for x
    x = 106,200,942,157.56/391,185.12
  6. Step 6: Final answer
    x = 271,485.13

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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.