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Finding the Fourth Proportional to 255,409.76, 352,465.08 and 142,259.24

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Solution

The fourth proportional to 255,409.76, 352,465.08 and 142,259.24 is: 196,317.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,409.76 : 352,465.08 = 142,259.24 : x
  2. Step 2: Convert to fraction form
    255,409.76/352,465.08 = 142,259.24/x
  3. Step 3: Cross multiply
    255,409.76x = 352,465.08 × 142,259.24
  4. Step 4: Simplify right side
    255,409.76x = 50,141,414,407.34
  5. Step 5: Solve for x
    x = 50,141,414,407.34/255,409.76
  6. Step 6: Final answer
    x = 196,317.53

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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.