Home / 257,829.73-355,826.46-143,119.15

Finding the Fourth Proportional to 257,829.73, 355,826.46 and 143,119.15

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Solution

The fourth proportional to 257,829.73, 355,826.46 and 143,119.15 is: 197,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,829.73 : 355,826.46 = 143,119.15 : x
  2. Step 2: Convert to fraction form
    257,829.73/355,826.46 = 143,119.15/x
  3. Step 3: Cross multiply
    257,829.73x = 355,826.46 × 143,119.15
  4. Step 4: Simplify right side
    257,829.73x = 50,925,580,502.71
  5. Step 5: Solve for x
    x = 50,925,580,502.71/257,829.73
  6. Step 6: Final answer
    x = 197,516.32

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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.