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Finding the Fourth Proportional to 164,638.56, 246,956.04 and 39,979.68

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Solution

The fourth proportional to 164,638.56, 246,956.04 and 39,979.68 is: 59,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,638.56 : 246,956.04 = 39,979.68 : x
  2. Step 2: Convert to fraction form
    164,638.56/246,956.04 = 39,979.68/x
  3. Step 3: Cross multiply
    164,638.56x = 246,956.04 × 39,979.68
  4. Step 4: Simplify right side
    164,638.56x = 9,873,223,453.27
  5. Step 5: Solve for x
    x = 9,873,223,453.27/164,638.56
  6. Step 6: Final answer
    x = 59,969.08

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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.