Home / 302,544.50-417,640.60-215,385.86

Finding the Fourth Proportional to 302,544.50, 417,640.60 and 215,385.86

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Solution

The fourth proportional to 302,544.50, 417,640.60 and 215,385.86 is: 297,324.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,544.50 : 417,640.60 = 215,385.86 : x
  2. Step 2: Convert to fraction form
    302,544.50/417,640.60 = 215,385.86/x
  3. Step 3: Cross multiply
    302,544.50x = 417,640.60 × 215,385.86
  4. Step 4: Simplify right side
    302,544.50x = 89,953,879,801.92
  5. Step 5: Solve for x
    x = 89,953,879,801.92/302,544.50
  6. Step 6: Final answer
    x = 297,324.46

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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.