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Finding the Fourth Proportional to 340,551.68, 469,927.68 and 189,662.72

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Solution

The fourth proportional to 340,551.68, 469,927.68 and 189,662.72 is: 261,715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,551.68 : 469,927.68 = 189,662.72 : x
  2. Step 2: Convert to fraction form
    340,551.68/469,927.68 = 189,662.72/x
  3. Step 3: Cross multiply
    340,551.68x = 469,927.68 × 189,662.72
  4. Step 4: Simplify right side
    340,551.68x = 89,127,761,992.09
  5. Step 5: Solve for x
    x = 89,127,761,992.09/340,551.68
  6. Step 6: Final answer
    x = 261,715.82

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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.