Home / 212,194.92-318,094.64-145,666.38

Finding the Fourth Proportional to 212,194.92, 318,094.64 and 145,666.38

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Solution

The fourth proportional to 212,194.92, 318,094.64 and 145,666.38 is: 218,363.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,194.92 : 318,094.64 = 145,666.38 : x
  2. Step 2: Convert to fraction form
    212,194.92/318,094.64 = 145,666.38/x
  3. Step 3: Cross multiply
    212,194.92x = 318,094.64 × 145,666.38
  4. Step 4: Simplify right side
    212,194.92x = 46,335,693,977.87
  5. Step 5: Solve for x
    x = 46,335,693,977.87/212,194.92
  6. Step 6: Final answer
    x = 218,363.82

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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.