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Finding the Fourth Proportional to 171,856.80, 257,924.16 and 118,516.32

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Solution

The fourth proportional to 171,856.80, 257,924.16 and 118,516.32 is: 177,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,856.80 : 257,924.16 = 118,516.32 : x
  2. Step 2: Convert to fraction form
    171,856.80/257,924.16 = 118,516.32/x
  3. Step 3: Cross multiply
    171,856.80x = 257,924.16 × 118,516.32
  4. Step 4: Simplify right side
    171,856.80x = 30,568,222,282.29
  5. Step 5: Solve for x
    x = 30,568,222,282.29/171,856.80
  6. Step 6: Final answer
    x = 177,870.31

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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.