Home / 285,383.12-393,831.60-172,184

Finding the Fourth Proportional to 285,383.12, 393,831.60 and 172,184

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Solution

The fourth proportional to 285,383.12, 393,831.60 and 172,184 is: 237,615.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,383.12 : 393,831.60 = 172,184 : x
  2. Step 2: Convert to fraction form
    285,383.12/393,831.60 = 172,184/x
  3. Step 3: Cross multiply
    285,383.12x = 393,831.60 × 172,184
  4. Step 4: Simplify right side
    285,383.12x = 67,811,500,214.40
  5. Step 5: Solve for x
    x = 67,811,500,214.40/285,383.12
  6. Step 6: Final answer
    x = 237,615.67

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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.