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Finding the Fourth Proportional to 317,872.84, 476,663.58 and 189,847.72

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Solution

The fourth proportional to 317,872.84, 476,663.58 and 189,847.72 is: 284,684.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,872.84 : 476,663.58 = 189,847.72 : x
  2. Step 2: Convert to fraction form
    317,872.84/476,663.58 = 189,847.72/x
  3. Step 3: Cross multiply
    317,872.84x = 476,663.58 × 189,847.72
  4. Step 4: Simplify right side
    317,872.84x = 90,493,493,870.04
  5. Step 5: Solve for x
    x = 90,493,493,870.04/317,872.84
  6. Step 6: Final answer
    x = 284,684.57

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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.