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Finding the Fourth Proportional to 318,588.42, 477,882.83 and 218,445.01

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Solution

The fourth proportional to 318,588.42, 477,882.83 and 218,445.01 is: 327,667.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,588.42 : 477,882.83 = 218,445.01 : x
  2. Step 2: Convert to fraction form
    318,588.42/477,882.83 = 218,445.01/x
  3. Step 3: Cross multiply
    318,588.42x = 477,882.83 × 218,445.01
  4. Step 4: Simplify right side
    318,588.42x = 104,391,119,578.18
  5. Step 5: Solve for x
    x = 104,391,119,578.18/318,588.42
  6. Step 6: Final answer
    x = 327,667.65

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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.