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Finding the Fourth Proportional to 188,220, 282,330 and 56,892

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Solution

The fourth proportional to 188,220, 282,330 and 56,892 is: 85,338

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,220 : 282,330 = 56,892 : x
  2. Step 2: Convert to fraction form
    188,220/282,330 = 56,892/x
  3. Step 3: Cross multiply
    188,220x = 282,330 × 56,892
  4. Step 4: Simplify right side
    188,220x = 16,062,318,360
  5. Step 5: Solve for x
    x = 16,062,318,360/188,220
  6. Step 6: Final answer
    x = 85,338

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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.