Home / 257,931.32-355,359.71-199,587.44

Finding the Fourth Proportional to 257,931.32, 355,359.71 and 199,587.44

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Solution

The fourth proportional to 257,931.32, 355,359.71 and 199,587.44 is: 274,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,931.32 : 355,359.71 = 199,587.44 : x
  2. Step 2: Convert to fraction form
    257,931.32/355,359.71 = 199,587.44/x
  3. Step 3: Cross multiply
    257,931.32x = 355,359.71 × 199,587.44
  4. Step 4: Simplify right side
    257,931.32x = 70,925,335,062.73
  5. Step 5: Solve for x
    x = 70,925,335,062.73/257,931.32
  6. Step 6: Final answer
    x = 274,977.60

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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.