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Finding the Fourth Proportional to 169,966, 254,954.40 and 51,638.37

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Solution

The fourth proportional to 169,966, 254,954.40 and 51,638.37 is: 77,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,966 : 254,954.40 = 51,638.37 : x
  2. Step 2: Convert to fraction form
    169,966/254,954.40 = 51,638.37/x
  3. Step 3: Cross multiply
    169,966x = 254,954.40 × 51,638.37
  4. Step 4: Simplify right side
    169,966x = 13,165,429,640.33
  5. Step 5: Solve for x
    x = 13,165,429,640.33/169,966
  6. Step 6: Final answer
    x = 77,459.20

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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.