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Finding the Fourth Proportional to 271,415.85, 374,571.01 and 156,715.67

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Solution

The fourth proportional to 271,415.85, 374,571.01 and 156,715.67 is: 216,277.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,415.85 : 374,571.01 = 156,715.67 : x
  2. Step 2: Convert to fraction form
    271,415.85/374,571.01 = 156,715.67/x
  3. Step 3: Cross multiply
    271,415.85x = 374,571.01 × 156,715.67
  4. Step 4: Simplify right side
    271,415.85x = 58,701,144,921.87
  5. Step 5: Solve for x
    x = 58,701,144,921.87/271,415.85
  6. Step 6: Final answer
    x = 216,277.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.