Home / 351,368.22-527,050.50-85,128.78

Finding the Fourth Proportional to 351,368.22, 527,050.50 and 85,128.78

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Solution

The fourth proportional to 351,368.22, 527,050.50 and 85,128.78 is: 127,692.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,368.22 : 527,050.50 = 85,128.78 : x
  2. Step 2: Convert to fraction form
    351,368.22/527,050.50 = 85,128.78/x
  3. Step 3: Cross multiply
    351,368.22x = 527,050.50 × 85,128.78
  4. Step 4: Simplify right side
    351,368.22x = 44,867,166,063.39
  5. Step 5: Solve for x
    x = 44,867,166,063.39/351,368.22
  6. Step 6: Final answer
    x = 127,692.73

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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.