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Finding the Fourth Proportional to 425,167.92, 637,314.36 and 188,622

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Solution

The fourth proportional to 425,167.92, 637,314.36 and 188,622 is: 282,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,167.92 : 637,314.36 = 188,622 : x
  2. Step 2: Convert to fraction form
    425,167.92/637,314.36 = 188,622/x
  3. Step 3: Cross multiply
    425,167.92x = 637,314.36 × 188,622
  4. Step 4: Simplify right side
    425,167.92x = 120,211,509,211.92
  5. Step 5: Solve for x
    x = 120,211,509,211.92/425,167.92
  6. Step 6: Final answer
    x = 282,738.90

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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.