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Finding the Fourth Proportional to 289,595.88, 399,641.94 and 162,272.34

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Solution

The fourth proportional to 289,595.88, 399,641.94 and 162,272.34 is: 223,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,595.88 : 399,641.94 = 162,272.34 : x
  2. Step 2: Convert to fraction form
    289,595.88/399,641.94 = 162,272.34/x
  3. Step 3: Cross multiply
    289,595.88x = 399,641.94 × 162,272.34
  4. Step 4: Simplify right side
    289,595.88x = 64,850,832,765.94
  5. Step 5: Solve for x
    x = 64,850,832,765.94/289,595.88
  6. Step 6: Final answer
    x = 223,935.62

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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.