Home / 255,796.29-383,712.66-78,280.23

Finding the Fourth Proportional to 255,796.29, 383,712.66 and 78,280.23

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Solution

The fourth proportional to 255,796.29, 383,712.66 and 78,280.23 is: 117,425.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,796.29 : 383,712.66 = 78,280.23 : x
  2. Step 2: Convert to fraction form
    255,796.29/383,712.66 = 78,280.23/x
  3. Step 3: Cross multiply
    255,796.29x = 383,712.66 × 78,280.23
  4. Step 4: Simplify right side
    255,796.29x = 30,037,116,717.63
  5. Step 5: Solve for x
    x = 30,037,116,717.63/255,796.29
  6. Step 6: Final answer
    x = 117,425.93

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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.