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Finding the Fourth Proportional to 254,610.30, 381,915.45 and 166,036.80

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Solution

The fourth proportional to 254,610.30, 381,915.45 and 166,036.80 is: 249,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,610.30 : 381,915.45 = 166,036.80 : x
  2. Step 2: Convert to fraction form
    254,610.30/381,915.45 = 166,036.80/x
  3. Step 3: Cross multiply
    254,610.30x = 381,915.45 × 166,036.80
  4. Step 4: Simplify right side
    254,610.30x = 63,412,019,188.56
  5. Step 5: Solve for x
    x = 63,412,019,188.56/254,610.30
  6. Step 6: Final answer
    x = 249,055.20

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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.