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Finding the Fourth Proportional to 255,672.52, 352,840.10 and 142,496.08

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Solution

The fourth proportional to 255,672.52, 352,840.10 and 142,496.08 is: 196,651.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,672.52 : 352,840.10 = 142,496.08 : x
  2. Step 2: Convert to fraction form
    255,672.52/352,840.10 = 142,496.08/x
  3. Step 3: Cross multiply
    255,672.52x = 352,840.10 × 142,496.08
  4. Step 4: Simplify right side
    255,672.52x = 50,278,331,116.81
  5. Step 5: Solve for x
    x = 50,278,331,116.81/255,672.52
  6. Step 6: Final answer
    x = 196,651.29

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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.