Home / 485,080.25-669,431.39-270,220.05

Finding the Fourth Proportional to 485,080.25, 669,431.39 and 270,220.05

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Solution

The fourth proportional to 485,080.25, 669,431.39 and 270,220.05 is: 372,915.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,080.25 : 669,431.39 = 270,220.05 : x
  2. Step 2: Convert to fraction form
    485,080.25/669,431.39 = 270,220.05/x
  3. Step 3: Cross multiply
    485,080.25x = 669,431.39 × 270,220.05
  4. Step 4: Simplify right side
    485,080.25x = 180,893,782,326.27
  5. Step 5: Solve for x
    x = 180,893,782,326.27/485,080.25
  6. Step 6: Final answer
    x = 372,915.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.