Home / 397,119.30-548,024.60-215,831.64

Finding the Fourth Proportional to 397,119.30, 548,024.60 and 215,831.64

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Solution

The fourth proportional to 397,119.30, 548,024.60 and 215,831.64 is: 297,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,119.30 : 548,024.60 = 215,831.64 : x
  2. Step 2: Convert to fraction form
    397,119.30/548,024.60 = 215,831.64/x
  3. Step 3: Cross multiply
    397,119.30x = 548,024.60 × 215,831.64
  4. Step 4: Simplify right side
    397,119.30x = 118,281,048,178.34
  5. Step 5: Solve for x
    x = 118,281,048,178.34/397,119.30
  6. Step 6: Final answer
    x = 297,847.64

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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.