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Finding the Fourth Proportional to 485,160.78, 669,517.47 and 270,296.94

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Solution

The fourth proportional to 485,160.78, 669,517.47 and 270,296.94 is: 373,007.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,160.78 : 669,517.47 = 270,296.94 : x
  2. Step 2: Convert to fraction form
    485,160.78/669,517.47 = 270,296.94/x
  3. Step 3: Cross multiply
    485,160.78x = 669,517.47 × 270,296.94
  4. Step 4: Simplify right side
    485,160.78x = 180,968,523,417.54
  5. Step 5: Solve for x
    x = 180,968,523,417.54/485,160.78
  6. Step 6: Final answer
    x = 373,007.32

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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.