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Finding the Fourth Proportional to 389,366.25, 537,324.41 and 217,282.38

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Solution

The fourth proportional to 389,366.25, 537,324.41 and 217,282.38 is: 299,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,366.25 : 537,324.41 = 217,282.38 : x
  2. Step 2: Convert to fraction form
    389,366.25/537,324.41 = 217,282.38/x
  3. Step 3: Cross multiply
    389,366.25x = 537,324.41 × 217,282.38
  4. Step 4: Simplify right side
    389,366.25x = 116,751,126,636.90
  5. Step 5: Solve for x
    x = 116,751,126,636.90/389,366.25
  6. Step 6: Final answer
    x = 299,849.12

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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.