Home / 212,354.48-318,181.62-123,358.16

Finding the Fourth Proportional to 212,354.48, 318,181.62 and 123,358.16

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Solution

The fourth proportional to 212,354.48, 318,181.62 and 123,358.16 is: 184,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,354.48 : 318,181.62 = 123,358.16 : x
  2. Step 2: Convert to fraction form
    212,354.48/318,181.62 = 123,358.16/x
  3. Step 3: Cross multiply
    212,354.48x = 318,181.62 × 123,358.16
  4. Step 4: Simplify right side
    212,354.48x = 39,250,299,189.02
  5. Step 5: Solve for x
    x = 39,250,299,189.02/212,354.48
  6. Step 6: Final answer
    x = 184,833.86

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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.