Home / 302,789.07-417,859.86-188,130.94

Finding the Fourth Proportional to 302,789.07, 417,859.86 and 188,130.94

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Solution

The fourth proportional to 302,789.07, 417,859.86 and 188,130.94 is: 259,627.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,789.07 : 417,859.86 = 188,130.94 : x
  2. Step 2: Convert to fraction form
    302,789.07/417,859.86 = 188,130.94/x
  3. Step 3: Cross multiply
    302,789.07x = 417,859.86 × 188,130.94
  4. Step 4: Simplify right side
    302,789.07x = 78,612,367,910.91
  5. Step 5: Solve for x
    x = 78,612,367,910.91/302,789.07
  6. Step 6: Final answer
    x = 259,627.50

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1.5x scale

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.