Home / 257,831.40-386,747.10-173,850.60

Finding the Fourth Proportional to 257,831.40, 386,747.10 and 173,850.60

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Solution

The fourth proportional to 257,831.40, 386,747.10 and 173,850.60 is: 260,775.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,831.40 : 386,747.10 = 173,850.60 : x
  2. Step 2: Convert to fraction form
    257,831.40/386,747.10 = 173,850.60/x
  3. Step 3: Cross multiply
    257,831.40x = 386,747.10 × 173,850.60
  4. Step 4: Simplify right side
    257,831.40x = 67,236,215,383.26
  5. Step 5: Solve for x
    x = 67,236,215,383.26/257,831.40
  6. Step 6: Final answer
    x = 260,775.90

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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.