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Finding the Fourth Proportional to 169,486.80, 254,236.80 and 51,158.16

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Solution

The fourth proportional to 169,486.80, 254,236.80 and 51,158.16 is: 76,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,486.80 : 254,236.80 = 51,158.16 : x
  2. Step 2: Convert to fraction form
    169,486.80/254,236.80 = 51,158.16/x
  3. Step 3: Cross multiply
    169,486.80x = 254,236.80 × 51,158.16
  4. Step 4: Simplify right side
    169,486.80x = 13,006,286,892.29
  5. Step 5: Solve for x
    x = 13,006,286,892.29/169,486.80
  6. Step 6: Final answer
    x = 76,739.23

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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.