Home / 387,856.14-535,071.87-236,863.50

Finding the Fourth Proportional to 387,856.14, 535,071.87 and 236,863.50

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Solution

The fourth proportional to 387,856.14, 535,071.87 and 236,863.50 is: 326,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,856.14 : 535,071.87 = 236,863.50 : x
  2. Step 2: Convert to fraction form
    387,856.14/535,071.87 = 236,863.50/x
  3. Step 3: Cross multiply
    387,856.14x = 535,071.87 × 236,863.50
  4. Step 4: Simplify right side
    387,856.14x = 126,738,995,879.75
  5. Step 5: Solve for x
    x = 126,738,995,879.75/387,856.14
  6. Step 6: Final answer
    x = 326,768.05

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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.