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Finding the Fourth Proportional to 303,486.37, 418,748.67 and 174,399.91

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Solution

The fourth proportional to 303,486.37, 418,748.67 and 174,399.91 is: 240,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,486.37 : 418,748.67 = 174,399.91 : x
  2. Step 2: Convert to fraction form
    303,486.37/418,748.67 = 174,399.91/x
  3. Step 3: Cross multiply
    303,486.37x = 418,748.67 × 174,399.91
  4. Step 4: Simplify right side
    303,486.37x = 73,029,730,360.62
  5. Step 5: Solve for x
    x = 73,029,730,360.62/303,486.37
  6. Step 6: Final answer
    x = 240,635.95

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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.