Home / 257,217.36-354,956.12-142,495.76

Finding the Fourth Proportional to 257,217.36, 354,956.12 and 142,495.76

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Solution

The fourth proportional to 257,217.36, 354,956.12 and 142,495.76 is: 196,642.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,217.36 : 354,956.12 = 142,495.76 : x
  2. Step 2: Convert to fraction form
    257,217.36/354,956.12 = 142,495.76/x
  3. Step 3: Cross multiply
    257,217.36x = 354,956.12 × 142,495.76
  4. Step 4: Simplify right side
    257,217.36x = 50,579,743,329.68
  5. Step 5: Solve for x
    x = 50,579,743,329.68/257,217.36
  6. Step 6: Final answer
    x = 196,642.03

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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.