Home / 288,139.86-397,263.36-236,265.84

Finding the Fourth Proportional to 288,139.86, 397,263.36 and 236,265.84

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Solution

The fourth proportional to 288,139.86, 397,263.36 and 236,265.84 is: 325,743.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,139.86 : 397,263.36 = 236,265.84 : x
  2. Step 2: Convert to fraction form
    288,139.86/397,263.36 = 236,265.84/x
  3. Step 3: Cross multiply
    288,139.86x = 397,263.36 × 236,265.84
  4. Step 4: Simplify right side
    288,139.86x = 93,859,761,451.62
  5. Step 5: Solve for x
    x = 93,859,761,451.62/288,139.86
  6. Step 6: Final answer
    x = 325,743.76

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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.