Home / 257,327.28-355,112.48-142,607.80

Finding the Fourth Proportional to 257,327.28, 355,112.48 and 142,607.80

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Solution

The fourth proportional to 257,327.28, 355,112.48 and 142,607.80 is: 196,799.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,327.28 : 355,112.48 = 142,607.80 : x
  2. Step 2: Convert to fraction form
    257,327.28/355,112.48 = 142,607.80/x
  3. Step 3: Cross multiply
    257,327.28x = 355,112.48 × 142,607.80
  4. Step 4: Simplify right side
    257,327.28x = 50,641,809,525.34
  5. Step 5: Solve for x
    x = 50,641,809,525.34/257,327.28
  6. Step 6: Final answer
    x = 196,799.23

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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.