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Finding the Fourth Proportional to 255,612.24, 352,745.28 and 142,432.56

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Solution

The fourth proportional to 255,612.24, 352,745.28 and 142,432.56 is: 196,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,612.24 : 352,745.28 = 142,432.56 : x
  2. Step 2: Convert to fraction form
    255,612.24/352,745.28 = 142,432.56/x
  3. Step 3: Cross multiply
    255,612.24x = 352,745.28 × 142,432.56
  4. Step 4: Simplify right side
    255,612.24x = 50,242,413,258.32
  5. Step 5: Solve for x
    x = 50,242,413,258.32/255,612.24
  6. Step 6: Final answer
    x = 196,557.15

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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.