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Finding the Fourth Proportional to 255,449.58, 352,531.32 and 142,272.34

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Solution

The fourth proportional to 255,449.58, 352,531.32 and 142,272.34 is: 196,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,449.58 : 352,531.32 = 142,272.34 : x
  2. Step 2: Convert to fraction form
    255,449.58/352,531.32 = 142,272.34/x
  3. Step 3: Cross multiply
    255,449.58x = 352,531.32 × 142,272.34
  4. Step 4: Simplify right side
    255,449.58x = 50,155,455,819.69
  5. Step 5: Solve for x
    x = 50,155,455,819.69/255,449.58
  6. Step 6: Final answer
    x = 196,341.90

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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.