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Finding the Fourth Proportional to 271,850.32, 407,671.55 and 89,438.67

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Solution

The fourth proportional to 271,850.32, 407,671.55 and 89,438.67 is: 134,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,850.32 : 407,671.55 = 89,438.67 : x
  2. Step 2: Convert to fraction form
    271,850.32/407,671.55 = 89,438.67/x
  3. Step 3: Cross multiply
    271,850.32x = 407,671.55 × 89,438.67
  4. Step 4: Simplify right side
    271,850.32x = 36,461,600,781.65
  5. Step 5: Solve for x
    x = 36,461,600,781.65/271,850.32
  6. Step 6: Final answer
    x = 134,123.81

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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.