Home / 255,719.13-383,495.70-120,762.33

Finding the Fourth Proportional to 255,719.13, 383,495.70 and 120,762.33

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Solution

The fourth proportional to 255,719.13, 383,495.70 and 120,762.33 is: 181,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,719.13 : 383,495.70 = 120,762.33 : x
  2. Step 2: Convert to fraction form
    255,719.13/383,495.70 = 120,762.33/x
  3. Step 3: Cross multiply
    255,719.13x = 383,495.70 × 120,762.33
  4. Step 4: Simplify right side
    255,719.13x = 46,311,834,276.98
  5. Step 5: Solve for x
    x = 46,311,834,276.98/255,719.13
  6. Step 6: Final answer
    x = 181,104.30

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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.