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Finding the Fourth Proportional to 218,354.08, 327,518.16 and 212,444.32

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Solution

The fourth proportional to 218,354.08, 327,518.16 and 212,444.32 is: 318,653.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,354.08 : 327,518.16 = 212,444.32 : x
  2. Step 2: Convert to fraction form
    218,354.08/327,518.16 = 212,444.32/x
  3. Step 3: Cross multiply
    218,354.08x = 327,518.16 × 212,444.32
  4. Step 4: Simplify right side
    218,354.08x = 69,579,372,788.85
  5. Step 5: Solve for x
    x = 69,579,372,788.85/218,354.08
  6. Step 6: Final answer
    x = 318,653.87

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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.