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Finding the Fourth Proportional to 312,805.34, 468,450.32 and 216,472.62

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Solution

The fourth proportional to 312,805.34, 468,450.32 and 216,472.62 is: 324,184.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,805.34 : 468,450.32 = 216,472.62 : x
  2. Step 2: Convert to fraction form
    312,805.34/468,450.32 = 216,472.62/x
  3. Step 3: Cross multiply
    312,805.34x = 468,450.32 × 216,472.62
  4. Step 4: Simplify right side
    312,805.34x = 101,406,667,027.88
  5. Step 5: Solve for x
    x = 101,406,667,027.88/312,805.34
  6. Step 6: Final answer
    x = 324,184.58

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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.