Home / 397,890.90-596,842.56-221,518.92

Finding the Fourth Proportional to 397,890.90, 596,842.56 and 221,518.92

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Solution

The fourth proportional to 397,890.90, 596,842.56 and 221,518.92 is: 332,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,890.90 : 596,842.56 = 221,518.92 : x
  2. Step 2: Convert to fraction form
    397,890.90/596,842.56 = 221,518.92/x
  3. Step 3: Cross multiply
    397,890.90x = 596,842.56 × 221,518.92
  4. Step 4: Simplify right side
    397,890.90x = 132,211,919,301.24
  5. Step 5: Solve for x
    x = 132,211,919,301.24/397,890.90
  6. Step 6: Final answer
    x = 332,281.84

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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.