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Finding the Fourth Proportional to 342,080.30, 512,903.11 and 300,044.80

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Solution

The fourth proportional to 342,080.30, 512,903.11 and 300,044.80 is: 449,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,080.30 : 512,903.11 = 300,044.80 : x
  2. Step 2: Convert to fraction form
    342,080.30/512,903.11 = 300,044.80/x
  3. Step 3: Cross multiply
    342,080.30x = 512,903.11 × 300,044.80
  4. Step 4: Simplify right side
    342,080.30x = 153,893,911,059.33
  5. Step 5: Solve for x
    x = 153,893,911,059.33/342,080.30
  6. Step 6: Final answer
    x = 449,876.57

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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.