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Finding the Fourth Proportional to 425,151.88, 637,817.78 and 140,826.33

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Solution

The fourth proportional to 425,151.88, 637,817.78 and 140,826.33 is: 211,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,151.88 : 637,817.78 = 140,826.33 : x
  2. Step 2: Convert to fraction form
    425,151.88/637,817.78 = 140,826.33/x
  3. Step 3: Cross multiply
    425,151.88x = 637,817.78 × 140,826.33
  4. Step 4: Simplify right side
    425,151.88x = 89,821,537,518.21
  5. Step 5: Solve for x
    x = 89,821,537,518.21/425,151.88
  6. Step 6: Final answer
    x = 211,269.30

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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.