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Finding the Fourth Proportional to 317,222.52, 475,958.32 and 139,604.94

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Solution

The fourth proportional to 317,222.52, 475,958.32 and 139,604.94 is: 209,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,222.52 : 475,958.32 = 139,604.94 : x
  2. Step 2: Convert to fraction form
    317,222.52/475,958.32 = 139,604.94/x
  3. Step 3: Cross multiply
    317,222.52x = 475,958.32 × 139,604.94
  4. Step 4: Simplify right side
    317,222.52x = 66,446,132,706.10
  5. Step 5: Solve for x
    x = 66,446,132,706.10/317,222.52
  6. Step 6: Final answer
    x = 209,462.22

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1.5x scale

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.