Home / 212,199.32-318,299.04-54,427.77

Finding the Fourth Proportional to 212,199.32, 318,299.04 and 54,427.77

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Solution

The fourth proportional to 212,199.32, 318,299.04 and 54,427.77 is: 81,641.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,199.32 : 318,299.04 = 54,427.77 : x
  2. Step 2: Convert to fraction form
    212,199.32/318,299.04 = 54,427.77/x
  3. Step 3: Cross multiply
    212,199.32x = 318,299.04 × 54,427.77
  4. Step 4: Simplify right side
    212,199.32x = 17,324,306,940.34
  5. Step 5: Solve for x
    x = 17,324,306,940.34/212,199.32
  6. Step 6: Final answer
    x = 81,641.67

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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.