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Finding the Fourth Proportional to 180,624.90, 270,940.08 and 68,358

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Solution

The fourth proportional to 180,624.90, 270,940.08 and 68,358 is: 102,538.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,624.90 : 270,940.08 = 68,358 : x
  2. Step 2: Convert to fraction form
    180,624.90/270,940.08 = 68,358/x
  3. Step 3: Cross multiply
    180,624.90x = 270,940.08 × 68,358
  4. Step 4: Simplify right side
    180,624.90x = 18,520,921,988.64
  5. Step 5: Solve for x
    x = 18,520,921,988.64/180,624.90
  6. Step 6: Final answer
    x = 102,538.03

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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.