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Finding the Fourth Proportional to 272,517.05, 411,335.31 and 272,517.05

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Solution

The fourth proportional to 272,517.05, 411,335.31 and 272,517.05 is: 411,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,517.05 : 411,335.31 = 272,517.05 : x
  2. Step 2: Convert to fraction form
    272,517.05/411,335.31 = 272,517.05/x
  3. Step 3: Cross multiply
    272,517.05x = 411,335.31 × 272,517.05
  4. Step 4: Simplify right side
    272,517.05x = 112,095,882,163.42
  5. Step 5: Solve for x
    x = 112,095,882,163.42/272,517.05
  6. Step 6: Final answer
    x = 411,335.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.