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Finding the Fourth Proportional to 425,173.92, 637,323.36 and 188,628

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Solution

The fourth proportional to 425,173.92, 637,323.36 and 188,628 is: 282,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,173.92 : 637,323.36 = 188,628 : x
  2. Step 2: Convert to fraction form
    425,173.92/637,323.36 = 188,628/x
  3. Step 3: Cross multiply
    425,173.92x = 637,323.36 × 188,628
  4. Step 4: Simplify right side
    425,173.92x = 120,217,030,750.08
  5. Step 5: Solve for x
    x = 120,217,030,750.08/425,173.92
  6. Step 6: Final answer
    x = 282,747.89

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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.