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Finding the Fourth Proportional to 439,824.80, 659,218.80 and 187,104.80

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Solution

The fourth proportional to 439,824.80, 659,218.80 and 187,104.80 is: 280,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,824.80 : 659,218.80 = 187,104.80 : x
  2. Step 2: Convert to fraction form
    439,824.80/659,218.80 = 187,104.80/x
  3. Step 3: Cross multiply
    439,824.80x = 659,218.80 × 187,104.80
  4. Step 4: Simplify right side
    439,824.80x = 123,343,001,730.24
  5. Step 5: Solve for x
    x = 123,343,001,730.24/439,824.80
  6. Step 6: Final answer
    x = 280,436.67

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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.