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Finding the Fourth Proportional to 255,447.54, 352,528.56 and 142,270.32

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Solution

The fourth proportional to 255,447.54, 352,528.56 and 142,270.32 is: 196,339.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,447.54 : 352,528.56 = 142,270.32 : x
  2. Step 2: Convert to fraction form
    255,447.54/352,528.56 = 142,270.32/x
  3. Step 3: Cross multiply
    255,447.54x = 352,528.56 × 142,270.32
  4. Step 4: Simplify right side
    255,447.54x = 50,154,351,040.34
  5. Step 5: Solve for x
    x = 50,154,351,040.34/255,447.54
  6. Step 6: Final answer
    x = 196,339.14

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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.