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Finding the Fourth Proportional to 303,307, 418,563.66 and 169,171

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Solution

The fourth proportional to 303,307, 418,563.66 and 169,171 is: 233,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,307 : 418,563.66 = 169,171 : x
  2. Step 2: Convert to fraction form
    303,307/418,563.66 = 169,171/x
  3. Step 3: Cross multiply
    303,307x = 418,563.66 × 169,171
  4. Step 4: Simplify right side
    303,307x = 70,808,832,925.86
  5. Step 5: Solve for x
    x = 70,808,832,925.86/303,307
  6. Step 6: Final answer
    x = 233,455.98

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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.