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Finding the Fourth Proportional to 425,258.38, 637,666.08 and 200,558.49

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Solution

The fourth proportional to 425,258.38, 637,666.08 and 200,558.49 is: 300,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,258.38 : 637,666.08 = 200,558.49 : x
  2. Step 2: Convert to fraction form
    425,258.38/637,666.08 = 200,558.49/x
  3. Step 3: Cross multiply
    425,258.38x = 637,666.08 × 200,558.49
  4. Step 4: Simplify right side
    425,258.38x = 127,889,346,129.02
  5. Step 5: Solve for x
    x = 127,889,346,129.02/425,258.38
  6. Step 6: Final answer
    x = 300,733.28

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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.