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Finding the Fourth Proportional to 255,447.78, 352,534.08 and 142,270.26

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Solution

The fourth proportional to 255,447.78, 352,534.08 and 142,270.26 is: 196,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,447.78 : 352,534.08 = 142,270.26 : x
  2. Step 2: Convert to fraction form
    255,447.78/352,534.08 = 142,270.26/x
  3. Step 3: Cross multiply
    255,447.78x = 352,534.08 × 142,270.26
  4. Step 4: Simplify right side
    255,447.78x = 50,155,115,220.46
  5. Step 5: Solve for x
    x = 50,155,115,220.46/255,447.78
  6. Step 6: Final answer
    x = 196,341.95

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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.