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Finding the Fourth Proportional to 169,845.20, 254,735.40 and 51,520.40

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Solution

The fourth proportional to 169,845.20, 254,735.40 and 51,520.40 is: 77,270.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,845.20 : 254,735.40 = 51,520.40 : x
  2. Step 2: Convert to fraction form
    169,845.20/254,735.40 = 51,520.40/x
  3. Step 3: Cross multiply
    169,845.20x = 254,735.40 × 51,520.40
  4. Step 4: Simplify right side
    169,845.20x = 13,124,069,702.16
  5. Step 5: Solve for x
    x = 13,124,069,702.16/169,845.20
  6. Step 6: Final answer
    x = 77,270.77

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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.