Home / 255,213.53-382,900.75-120,272.15

Finding the Fourth Proportional to 255,213.53, 382,900.75 and 120,272.15

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Solution

The fourth proportional to 255,213.53, 382,900.75 and 120,272.15 is: 180,446.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,213.53 : 382,900.75 = 120,272.15 : x
  2. Step 2: Convert to fraction form
    255,213.53/382,900.75 = 120,272.15/x
  3. Step 3: Cross multiply
    255,213.53x = 382,900.75 × 120,272.15
  4. Step 4: Simplify right side
    255,213.53x = 46,052,296,439.11
  5. Step 5: Solve for x
    x = 46,052,296,439.11/255,213.53
  6. Step 6: Final answer
    x = 180,446.14

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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.