Home / 317,879.15-476,634.02-128,184.21

Finding the Fourth Proportional to 317,879.15, 476,634.02 and 128,184.21

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Solution

The fourth proportional to 317,879.15, 476,634.02 and 128,184.21 is: 192,201.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,879.15 : 476,634.02 = 128,184.21 : x
  2. Step 2: Convert to fraction form
    317,879.15/476,634.02 = 128,184.21/x
  3. Step 3: Cross multiply
    317,879.15x = 476,634.02 × 128,184.21
  4. Step 4: Simplify right side
    317,879.15x = 61,096,954,671.90
  5. Step 5: Solve for x
    x = 61,096,954,671.90/317,879.15
  6. Step 6: Final answer
    x = 192,201.83

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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.