Home / 289,834.80-434,752.20-132,370.80

Finding the Fourth Proportional to 289,834.80, 434,752.20 and 132,370.80

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Solution

The fourth proportional to 289,834.80, 434,752.20 and 132,370.80 is: 198,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,834.80 : 434,752.20 = 132,370.80 : x
  2. Step 2: Convert to fraction form
    289,834.80/434,752.20 = 132,370.80/x
  3. Step 3: Cross multiply
    289,834.80x = 434,752.20 × 132,370.80
  4. Step 4: Simplify right side
    289,834.80x = 57,548,496,515.76
  5. Step 5: Solve for x
    x = 57,548,496,515.76/289,834.80
  6. Step 6: Final answer
    x = 198,556.20

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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.