Home / 257,199.11-354,930.92-142,477.40

Finding the Fourth Proportional to 257,199.11, 354,930.92 and 142,477.40

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Solution

The fourth proportional to 257,199.11, 354,930.92 and 142,477.40 is: 196,616.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,199.11 : 354,930.92 = 142,477.40 : x
  2. Step 2: Convert to fraction form
    257,199.11/354,930.92 = 142,477.40/x
  3. Step 3: Cross multiply
    257,199.11x = 354,930.92 × 142,477.40
  4. Step 4: Simplify right side
    257,199.11x = 50,569,633,948.82
  5. Step 5: Solve for x
    x = 50,569,633,948.82/257,199.11
  6. Step 6: Final answer
    x = 196,616.68

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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.