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Finding the Fourth Proportional to 303,486.30, 418,811.11 and 167,520.29

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Solution

The fourth proportional to 303,486.30, 418,811.11 and 167,520.29 is: 231,178.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,486.30 : 418,811.11 = 167,520.29 : x
  2. Step 2: Convert to fraction form
    303,486.30/418,811.11 = 167,520.29/x
  3. Step 3: Cross multiply
    303,486.30x = 418,811.11 × 167,520.29
  4. Step 4: Simplify right side
    303,486.30x = 70,159,358,602.42
  5. Step 5: Solve for x
    x = 70,159,358,602.42/303,486.30
  6. Step 6: Final answer
    x = 231,178.01

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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.