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Finding the Fourth Proportional to 302,717.40, 453,857.40 and 169,638.45

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Solution

The fourth proportional to 302,717.40, 453,857.40 and 169,638.45 is: 254,335.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,717.40 : 453,857.40 = 169,638.45 : x
  2. Step 2: Convert to fraction form
    302,717.40/453,857.40 = 169,638.45/x
  3. Step 3: Cross multiply
    302,717.40x = 453,857.40 × 169,638.45
  4. Step 4: Simplify right side
    302,717.40x = 76,991,665,857.03
  5. Step 5: Solve for x
    x = 76,991,665,857.03/302,717.40
  6. Step 6: Final answer
    x = 254,335.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.