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Finding the Fourth Proportional to 282,370.53, 421,064.90 and 243,179.49

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Solution

The fourth proportional to 282,370.53, 421,064.90 and 243,179.49 is: 362,624.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,370.53 : 421,064.90 = 243,179.49 : x
  2. Step 2: Convert to fraction form
    282,370.53/421,064.90 = 243,179.49/x
  3. Step 3: Cross multiply
    282,370.53x = 421,064.90 × 243,179.49
  4. Step 4: Simplify right side
    282,370.53x = 102,394,348,246.85
  5. Step 5: Solve for x
    x = 102,394,348,246.85/282,370.53
  6. Step 6: Final answer
    x = 362,624.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.