Home / 427,624.67-641,558.10-214,134.86

Finding the Fourth Proportional to 427,624.67, 641,558.10 and 214,134.86

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Solution

The fourth proportional to 427,624.67, 641,558.10 and 214,134.86 is: 321,262.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,624.67 : 641,558.10 = 214,134.86 : x
  2. Step 2: Convert to fraction form
    427,624.67/641,558.10 = 214,134.86/x
  3. Step 3: Cross multiply
    427,624.67x = 641,558.10 × 214,134.86
  4. Step 4: Simplify right side
    427,624.67x = 137,379,953,925.37
  5. Step 5: Solve for x
    x = 137,379,953,925.37/427,624.67
  6. Step 6: Final answer
    x = 321,262.93

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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.