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Finding the Fourth Proportional to 169,474.80, 254,218.80 and 51,146.16

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Solution

The fourth proportional to 169,474.80, 254,218.80 and 51,146.16 is: 76,721.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,474.80 : 254,218.80 = 51,146.16 : x
  2. Step 2: Convert to fraction form
    169,474.80/254,218.80 = 51,146.16/x
  3. Step 3: Cross multiply
    169,474.80x = 254,218.80 × 51,146.16
  4. Step 4: Simplify right side
    169,474.80x = 13,002,315,419.81
  5. Step 5: Solve for x
    x = 13,002,315,419.81/169,474.80
  6. Step 6: Final answer
    x = 76,721.23

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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.