Home / 384,790.42-531,006.85-215,024.54

Finding the Fourth Proportional to 384,790.42, 531,006.85 and 215,024.54

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Solution

The fourth proportional to 384,790.42, 531,006.85 and 215,024.54 is: 296,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,790.42 : 531,006.85 = 215,024.54 : x
  2. Step 2: Convert to fraction form
    384,790.42/531,006.85 = 215,024.54/x
  3. Step 3: Cross multiply
    384,790.42x = 531,006.85 × 215,024.54
  4. Step 4: Simplify right side
    384,790.42x = 114,179,503,658.10
  5. Step 5: Solve for x
    x = 114,179,503,658.10/384,790.42
  6. Step 6: Final answer
    x = 296,731.67

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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.