Home / 851,143.80-1,276,902.59-252,151.86

Finding the Fourth Proportional to 851,143.80, 1,276,902.59 and 252,151.86

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Solution

The fourth proportional to 851,143.80, 1,276,902.59 and 252,151.86 is: 378,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,143.80 : 1,276,902.59 = 252,151.86 : x
  2. Step 2: Convert to fraction form
    851,143.80/1,276,902.59 = 252,151.86/x
  3. Step 3: Cross multiply
    851,143.80x = 1,276,902.59 × 252,151.86
  4. Step 4: Simplify right side
    851,143.80x = 321,973,363,107.32
  5. Step 5: Solve for x
    x = 321,973,363,107.32/851,143.80
  6. Step 6: Final answer
    x = 378,283.16

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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.