Home / 424,072.20-636,108.30-214,120.20

Finding the Fourth Proportional to 424,072.20, 636,108.30 and 214,120.20

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Solution

The fourth proportional to 424,072.20, 636,108.30 and 214,120.20 is: 321,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,072.20 : 636,108.30 = 214,120.20 : x
  2. Step 2: Convert to fraction form
    424,072.20/636,108.30 = 214,120.20/x
  3. Step 3: Cross multiply
    424,072.20x = 636,108.30 × 214,120.20
  4. Step 4: Simplify right side
    424,072.20x = 136,203,636,417.66
  5. Step 5: Solve for x
    x = 136,203,636,417.66/424,072.20
  6. Step 6: Final answer
    x = 321,180.30

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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.