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Finding the Fourth Proportional to 342,308.40, 512,080.20 and 296,074.80

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Solution

The fourth proportional to 342,308.40, 512,080.20 and 296,074.80 is: 442,916.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,308.40 : 512,080.20 = 296,074.80 : x
  2. Step 2: Convert to fraction form
    342,308.40/512,080.20 = 296,074.80/x
  3. Step 3: Cross multiply
    342,308.40x = 512,080.20 × 296,074.80
  4. Step 4: Simplify right side
    342,308.40x = 151,614,042,798.96
  5. Step 5: Solve for x
    x = 151,614,042,798.96/342,308.40
  6. Step 6: Final answer
    x = 442,916.51

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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.