Home / 377,459.80-520,890.55-214,146.48

Finding the Fourth Proportional to 377,459.80, 520,890.55 and 214,146.48

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Solution

The fourth proportional to 377,459.80, 520,890.55 and 214,146.48 is: 295,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,459.80 : 520,890.55 = 214,146.48 : x
  2. Step 2: Convert to fraction form
    377,459.80/520,890.55 = 214,146.48/x
  3. Step 3: Cross multiply
    377,459.80x = 520,890.55 × 214,146.48
  4. Step 4: Simplify right side
    377,459.80x = 111,546,879,165.74
  5. Step 5: Solve for x
    x = 111,546,879,165.74/377,459.80
  6. Step 6: Final answer
    x = 295,519.89

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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.