Home / 851,142.80-1,276,901.09-252,150.86

Finding the Fourth Proportional to 851,142.80, 1,276,901.09 and 252,150.86

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Solution

The fourth proportional to 851,142.80, 1,276,901.09 and 252,150.86 is: 378,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,142.80 : 1,276,901.09 = 252,150.86 : x
  2. Step 2: Convert to fraction form
    851,142.80/1,276,901.09 = 252,150.86/x
  3. Step 3: Cross multiply
    851,142.80x = 1,276,901.09 × 252,150.86
  4. Step 4: Simplify right side
    851,142.80x = 321,971,700,333.18
  5. Step 5: Solve for x
    x = 321,971,700,333.18/851,142.80
  6. Step 6: Final answer
    x = 378,281.65

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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.