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Finding the Fourth Proportional to 386,694, 533,631.17 and 216,924.48

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Solution

The fourth proportional to 386,694, 533,631.17 and 216,924.48 is: 299,352.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,694 : 533,631.17 = 216,924.48 : x
  2. Step 2: Convert to fraction form
    386,694/533,631.17 = 216,924.48/x
  3. Step 3: Cross multiply
    386,694x = 533,631.17 × 216,924.48
  4. Step 4: Simplify right side
    386,694x = 115,757,664,064.04
  5. Step 5: Solve for x
    x = 115,757,664,064.04/386,694
  6. Step 6: Final answer
    x = 299,352.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.