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Finding the Fourth Proportional to 318,344.50, 439,315.68 and 184,208.50

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Solution

The fourth proportional to 318,344.50, 439,315.68 and 184,208.50 is: 254,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,344.50 : 439,315.68 = 184,208.50 : x
  2. Step 2: Convert to fraction form
    318,344.50/439,315.68 = 184,208.50/x
  3. Step 3: Cross multiply
    318,344.50x = 439,315.68 × 184,208.50
  4. Step 4: Simplify right side
    318,344.50x = 80,925,682,439.28
  5. Step 5: Solve for x
    x = 80,925,682,439.28/318,344.50
  6. Step 6: Final answer
    x = 254,207.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.