Home / 485,131.36-669,464.40-270,260.32

Finding the Fourth Proportional to 485,131.36, 669,464.40 and 270,260.32

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Solution

The fourth proportional to 485,131.36, 669,464.40 and 270,260.32 is: 372,949.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,131.36 : 669,464.40 = 270,260.32 : x
  2. Step 2: Convert to fraction form
    485,131.36/669,464.40 = 270,260.32/x
  3. Step 3: Cross multiply
    485,131.36x = 669,464.40 × 270,260.32
  4. Step 4: Simplify right side
    485,131.36x = 180,929,662,972.61
  5. Step 5: Solve for x
    x = 180,929,662,972.61/485,131.36
  6. Step 6: Final answer
    x = 372,949.84

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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.