Home / 257,831.63-355,800.83-143,109.96

Finding the Fourth Proportional to 257,831.63, 355,800.83 and 143,109.96

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Solution

The fourth proportional to 257,831.63, 355,800.83 and 143,109.96 is: 197,487.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,831.63 : 355,800.83 = 143,109.96 : x
  2. Step 2: Convert to fraction form
    257,831.63/355,800.83 = 143,109.96/x
  3. Step 3: Cross multiply
    257,831.63x = 355,800.83 × 143,109.96
  4. Step 4: Simplify right side
    257,831.63x = 50,918,641,833.72
  5. Step 5: Solve for x
    x = 50,918,641,833.72/257,831.63
  6. Step 6: Final answer
    x = 197,487.96

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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.