Home / 318,774.46-477,939.75-141,185.20

Finding the Fourth Proportional to 318,774.46, 477,939.75 and 141,185.20

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Solution

The fourth proportional to 318,774.46, 477,939.75 and 141,185.20 is: 211,679.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,774.46 : 477,939.75 = 141,185.20 : x
  2. Step 2: Convert to fraction form
    318,774.46/477,939.75 = 141,185.20/x
  3. Step 3: Cross multiply
    318,774.46x = 477,939.75 × 141,185.20
  4. Step 4: Simplify right side
    318,774.46x = 67,478,017,290.92
  5. Step 5: Solve for x
    x = 67,478,017,290.92/318,774.46
  6. Step 6: Final answer
    x = 211,679.50

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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.