Home / 394,890.90-592,336.35-235,458.60

Finding the Fourth Proportional to 394,890.90, 592,336.35 and 235,458.60

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Solution

The fourth proportional to 394,890.90, 592,336.35 and 235,458.60 is: 353,187.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,890.90 : 592,336.35 = 235,458.60 : x
  2. Step 2: Convert to fraction form
    394,890.90/592,336.35 = 235,458.60/x
  3. Step 3: Cross multiply
    394,890.90x = 592,336.35 × 235,458.60
  4. Step 4: Simplify right side
    394,890.90x = 139,470,687,700.11
  5. Step 5: Solve for x
    x = 139,470,687,700.11/394,890.90
  6. Step 6: Final answer
    x = 353,187.90

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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.