Home / 330,811.80-457,140.87-270,360.39

Finding the Fourth Proportional to 330,811.80, 457,140.87 and 270,360.39

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Solution

The fourth proportional to 330,811.80, 457,140.87 and 270,360.39 is: 373,604.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,811.80 : 457,140.87 = 270,360.39 : x
  2. Step 2: Convert to fraction form
    330,811.80/457,140.87 = 270,360.39/x
  3. Step 3: Cross multiply
    330,811.80x = 457,140.87 × 270,360.39
  4. Step 4: Simplify right side
    330,811.80x = 123,592,783,898.14
  5. Step 5: Solve for x
    x = 123,592,783,898.14/330,811.80
  6. Step 6: Final answer
    x = 373,604.52

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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.