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Finding the Fourth Proportional to 303,489.88, 455,136.26 and 101,031.59

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Solution

The fourth proportional to 303,489.88, 455,136.26 and 101,031.59 is: 151,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,489.88 : 455,136.26 = 101,031.59 : x
  2. Step 2: Convert to fraction form
    303,489.88/455,136.26 = 101,031.59/x
  3. Step 3: Cross multiply
    303,489.88x = 455,136.26 × 101,031.59
  4. Step 4: Simplify right side
    303,489.88x = 45,983,141,404.87
  5. Step 5: Solve for x
    x = 45,983,141,404.87/303,489.88
  6. Step 6: Final answer
    x = 151,514.58

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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.