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Finding the Fourth Proportional to 169,638.60, 254,497.86 and 51,310.92

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Solution

The fourth proportional to 169,638.60, 254,497.86 and 51,310.92 is: 76,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,638.60 : 254,497.86 = 51,310.92 : x
  2. Step 2: Convert to fraction form
    169,638.60/254,497.86 = 51,310.92/x
  3. Step 3: Cross multiply
    169,638.60x = 254,497.86 × 51,310.92
  4. Step 4: Simplify right side
    169,638.60x = 13,058,519,334.63
  5. Step 5: Solve for x
    x = 13,058,519,334.63/169,638.60
  6. Step 6: Final answer
    x = 76,978.47

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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.