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Finding the Fourth Proportional to 485,518.66, 670,055.63 and 267,769.92

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Solution

The fourth proportional to 485,518.66, 670,055.63 and 267,769.92 is: 369,544.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,518.66 : 670,055.63 = 267,769.92 : x
  2. Step 2: Convert to fraction form
    485,518.66/670,055.63 = 267,769.92/x
  3. Step 3: Cross multiply
    485,518.66x = 670,055.63 × 267,769.92
  4. Step 4: Simplify right side
    485,518.66x = 179,420,737,751.52
  5. Step 5: Solve for x
    x = 179,420,737,751.52/485,518.66
  6. Step 6: Final answer
    x = 369,544.48

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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.