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Finding the Fourth Proportional to 251,307.88, 346,855.32 and 149,313.72

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Solution

The fourth proportional to 251,307.88, 346,855.32 and 149,313.72 is: 206,082.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,307.88 : 346,855.32 = 149,313.72 : x
  2. Step 2: Convert to fraction form
    251,307.88/346,855.32 = 149,313.72/x
  3. Step 3: Cross multiply
    251,307.88x = 346,855.32 × 149,313.72
  4. Step 4: Simplify right side
    251,307.88x = 51,790,258,130.99
  5. Step 5: Solve for x
    x = 51,790,258,130.99/251,307.88
  6. Step 6: Final answer
    x = 206,082.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.