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Finding the Fourth Proportional to 311,813.00, 430,301.82 and 168,573

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Solution

The fourth proportional to 311,813.00, 430,301.82 and 168,573 is: 232,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,813.00 : 430,301.82 = 168,573 : x
  2. Step 2: Convert to fraction form
    311,813.00/430,301.82 = 168,573/x
  3. Step 3: Cross multiply
    311,813.00x = 430,301.82 × 168,573
  4. Step 4: Simplify right side
    311,813.00x = 72,537,268,702.86
  5. Step 5: Solve for x
    x = 72,537,268,702.86/311,813.00
  6. Step 6: Final answer
    x = 232,630.68

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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.