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Finding the Fourth Proportional to 255,445.54, 352,525.80 and 142,268.32

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Solution

The fourth proportional to 255,445.54, 352,525.80 and 142,268.32 is: 196,336.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,445.54 : 352,525.80 = 142,268.32 : x
  2. Step 2: Convert to fraction form
    255,445.54/352,525.80 = 142,268.32/x
  3. Step 3: Cross multiply
    255,445.54x = 352,525.80 × 142,268.32
  4. Step 4: Simplify right side
    255,445.54x = 50,153,253,322.66
  5. Step 5: Solve for x
    x = 50,153,253,322.66/255,445.54
  6. Step 6: Final answer
    x = 196,336.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.