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Finding the Fourth Proportional to 171,867.40, 257,801.10 and 163,702.60

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Solution

The fourth proportional to 171,867.40, 257,801.10 and 163,702.60 is: 245,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,867.40 : 257,801.10 = 163,702.60 : x
  2. Step 2: Convert to fraction form
    171,867.40/257,801.10 = 163,702.60/x
  3. Step 3: Cross multiply
    171,867.40x = 257,801.10 × 163,702.60
  4. Step 4: Simplify right side
    171,867.40x = 42,202,710,352.86
  5. Step 5: Solve for x
    x = 42,202,710,352.86/171,867.40
  6. Step 6: Final answer
    x = 245,553.90

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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.