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Finding the Fourth Proportional to 340,491.18, 469,873.26 and 189,588.18

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Solution

The fourth proportional to 340,491.18, 469,873.26 and 189,588.18 is: 261,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,491.18 : 469,873.26 = 189,588.18 : x
  2. Step 2: Convert to fraction form
    340,491.18/469,873.26 = 189,588.18/x
  3. Step 3: Cross multiply
    340,491.18x = 469,873.26 × 189,588.18
  4. Step 4: Simplify right side
    340,491.18x = 89,082,416,194.07
  5. Step 5: Solve for x
    x = 89,082,416,194.07/340,491.18
  6. Step 6: Final answer
    x = 261,629.14

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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.