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Finding the Fourth Proportional to 221,700.69, 303,731.08 and 213,398.14

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Solution

The fourth proportional to 221,700.69, 303,731.08 and 213,398.14 is: 292,356.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,700.69 : 303,731.08 = 213,398.14 : x
  2. Step 2: Convert to fraction form
    221,700.69/303,731.08 = 213,398.14/x
  3. Step 3: Cross multiply
    221,700.69x = 303,731.08 × 213,398.14
  4. Step 4: Simplify right side
    221,700.69x = 64,815,647,532.19
  5. Step 5: Solve for x
    x = 64,815,647,532.19/221,700.69
  6. Step 6: Final answer
    x = 292,356.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.