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Finding the Fourth Proportional to 295,479.72, 443,220.12 and 85,134.60

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Solution

The fourth proportional to 295,479.72, 443,220.12 and 85,134.60 is: 127,702.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,479.72 : 443,220.12 = 85,134.60 : x
  2. Step 2: Convert to fraction form
    295,479.72/443,220.12 = 85,134.60/x
  3. Step 3: Cross multiply
    295,479.72x = 443,220.12 × 85,134.60
  4. Step 4: Simplify right side
    295,479.72x = 37,733,367,628.15
  5. Step 5: Solve for x
    x = 37,733,367,628.15/295,479.72
  6. Step 6: Final answer
    x = 127,702.06

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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.