Home / 257,318.54-355,113.27-142,609.73

Finding the Fourth Proportional to 257,318.54, 355,113.27 and 142,609.73

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Solution

The fourth proportional to 257,318.54, 355,113.27 and 142,609.73 is: 196,809.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,318.54 : 355,113.27 = 142,609.73 : x
  2. Step 2: Convert to fraction form
    257,318.54/355,113.27 = 142,609.73/x
  3. Step 3: Cross multiply
    257,318.54x = 355,113.27 × 142,609.73
  4. Step 4: Simplify right side
    257,318.54x = 50,642,607,554.12
  5. Step 5: Solve for x
    x = 50,642,607,554.12/257,318.54
  6. Step 6: Final answer
    x = 196,809.01

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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.