Home / 318,609.35-477,997.30-118,931.46

Finding the Fourth Proportional to 318,609.35, 477,997.30 and 118,931.46

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Solution

The fourth proportional to 318,609.35, 477,997.30 and 118,931.46 is: 178,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,609.35 : 477,997.30 = 118,931.46 : x
  2. Step 2: Convert to fraction form
    318,609.35/477,997.30 = 118,931.46/x
  3. Step 3: Cross multiply
    318,609.35x = 477,997.30 × 118,931.46
  4. Step 4: Simplify right side
    318,609.35x = 56,848,915,121.23
  5. Step 5: Solve for x
    x = 56,848,915,121.23/318,609.35
  6. Step 6: Final answer
    x = 178,428.27

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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.