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Finding the Fourth Proportional to 317,253.00, 476,004.12 and 139,635.50

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Solution

The fourth proportional to 317,253.00, 476,004.12 and 139,635.50 is: 209,508.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,253.00 : 476,004.12 = 139,635.50 : x
  2. Step 2: Convert to fraction form
    317,253.00/476,004.12 = 139,635.50/x
  3. Step 3: Cross multiply
    317,253.00x = 476,004.12 × 139,635.50
  4. Step 4: Simplify right side
    317,253.00x = 66,467,070,394.61
  5. Step 5: Solve for x
    x = 66,467,070,394.61/317,253.00
  6. Step 6: Final answer
    x = 209,508.09

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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.