Home / 482,127.27-665,330.40-278,175.75

Finding the Fourth Proportional to 482,127.27, 665,330.40 and 278,175.75

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Solution

The fourth proportional to 482,127.27, 665,330.40 and 278,175.75 is: 383,879.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,127.27 : 665,330.40 = 278,175.75 : x
  2. Step 2: Convert to fraction form
    482,127.27/665,330.40 = 278,175.75/x
  3. Step 3: Cross multiply
    482,127.27x = 665,330.40 × 278,175.75
  4. Step 4: Simplify right side
    482,127.27x = 185,078,783,017.80
  5. Step 5: Solve for x
    x = 185,078,783,017.80/482,127.27
  6. Step 6: Final answer
    x = 383,879.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.