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Finding the Fourth Proportional to 400,336, 552,470.70 and 219,063.81

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Solution

The fourth proportional to 400,336, 552,470.70 and 219,063.81 is: 302,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,336 : 552,470.70 = 219,063.81 : x
  2. Step 2: Convert to fraction form
    400,336/552,470.70 = 219,063.81/x
  3. Step 3: Cross multiply
    400,336x = 552,470.70 × 219,063.81
  4. Step 4: Simplify right side
    400,336x = 121,026,336,455.37
  5. Step 5: Solve for x
    x = 121,026,336,455.37/400,336
  6. Step 6: Final answer
    x = 302,311.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.