Home / 215,831.70-323,747.55-171,216.90

Finding the Fourth Proportional to 215,831.70, 323,747.55 and 171,216.90

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Solution

The fourth proportional to 215,831.70, 323,747.55 and 171,216.90 is: 256,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,831.70 : 323,747.55 = 171,216.90 : x
  2. Step 2: Convert to fraction form
    215,831.70/323,747.55 = 171,216.90/x
  3. Step 3: Cross multiply
    215,831.70x = 323,747.55 × 171,216.90
  4. Step 4: Simplify right side
    215,831.70x = 55,431,051,893.60
  5. Step 5: Solve for x
    x = 55,431,051,893.60/215,831.70
  6. Step 6: Final answer
    x = 256,825.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.