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Finding the Fourth Proportional to 303,422.58, 418,715.28 and 167,454.72

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Solution

The fourth proportional to 303,422.58, 418,715.28 and 167,454.72 is: 231,083.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,422.58 : 418,715.28 = 167,454.72 : x
  2. Step 2: Convert to fraction form
    303,422.58/418,715.28 = 167,454.72/x
  3. Step 3: Cross multiply
    303,422.58x = 418,715.28 × 167,454.72
  4. Step 4: Simplify right side
    303,422.58x = 70,115,849,972.12
  5. Step 5: Solve for x
    x = 70,115,849,972.12/303,422.58
  6. Step 6: Final answer
    x = 231,083.16

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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.