Home / 425,150.76-637,816.09-140,825.21

Finding the Fourth Proportional to 425,150.76, 637,816.09 and 140,825.21

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Solution

The fourth proportional to 425,150.76, 637,816.09 and 140,825.21 is: 211,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,150.76 : 637,816.09 = 140,825.21 : x
  2. Step 2: Convert to fraction form
    425,150.76/637,816.09 = 140,825.21/x
  3. Step 3: Cross multiply
    425,150.76x = 637,816.09 × 140,825.21
  4. Step 4: Simplify right side
    425,150.76x = 89,820,583,629.44
  5. Step 5: Solve for x
    x = 89,820,583,629.44/425,150.76
  6. Step 6: Final answer
    x = 211,267.61

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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.