Home / 377,964.23-521,569.41-216,804.20

Finding the Fourth Proportional to 377,964.23, 521,569.41 and 216,804.20

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Solution

The fourth proportional to 377,964.23, 521,569.41 and 216,804.20 is: 299,177.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,964.23 : 521,569.41 = 216,804.20 : x
  2. Step 2: Convert to fraction form
    377,964.23/521,569.41 = 216,804.20/x
  3. Step 3: Cross multiply
    377,964.23x = 521,569.41 × 216,804.20
  4. Step 4: Simplify right side
    377,964.23x = 113,078,436,071.68
  5. Step 5: Solve for x
    x = 113,078,436,071.68/377,964.23
  6. Step 6: Final answer
    x = 299,177.62

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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.