Home / 289,085.20-433,044.60-200,438.80

Finding the Fourth Proportional to 289,085.20, 433,044.60 and 200,438.80

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Solution

The fourth proportional to 289,085.20, 433,044.60 and 200,438.80 is: 300,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,085.20 : 433,044.60 = 200,438.80 : x
  2. Step 2: Convert to fraction form
    289,085.20/433,044.60 = 200,438.80/x
  3. Step 3: Cross multiply
    289,085.20x = 433,044.60 × 200,438.80
  4. Step 4: Simplify right side
    289,085.20x = 86,798,939,970.48
  5. Step 5: Solve for x
    x = 86,798,939,970.48/289,085.20
  6. Step 6: Final answer
    x = 300,253.84

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1.5x scale

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.