Home / 424,380.14-636,648.91-140,090.49

Finding the Fourth Proportional to 424,380.14, 636,648.91 and 140,090.49

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Solution

The fourth proportional to 424,380.14, 636,648.91 and 140,090.49 is: 210,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,380.14 : 636,648.91 = 140,090.49 : x
  2. Step 2: Convert to fraction form
    424,380.14/636,648.91 = 140,090.49/x
  3. Step 3: Cross multiply
    424,380.14x = 636,648.91 × 140,090.49
  4. Step 4: Simplify right side
    424,380.14x = 89,188,456,407.07
  5. Step 5: Solve for x
    x = 89,188,456,407.07/424,380.14
  6. Step 6: Final answer
    x = 210,161.71

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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.