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Finding the Fourth Proportional to 180,779.82, 271,009.29 and 68,381.34

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Solution

The fourth proportional to 180,779.82, 271,009.29 and 68,381.34 is: 102,511.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,779.82 : 271,009.29 = 68,381.34 : x
  2. Step 2: Convert to fraction form
    180,779.82/271,009.29 = 68,381.34/x
  3. Step 3: Cross multiply
    180,779.82x = 271,009.29 × 68,381.34
  4. Step 4: Simplify right side
    180,779.82x = 18,531,978,402.65
  5. Step 5: Solve for x
    x = 18,531,978,402.65/180,779.82
  6. Step 6: Final answer
    x = 102,511.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.