Home / 214,691.47-321,538.89-207,218.30

Finding the Fourth Proportional to 214,691.47, 321,538.89 and 207,218.30

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Solution

The fourth proportional to 214,691.47, 321,538.89 and 207,218.30 is: 310,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,691.47 : 321,538.89 = 207,218.30 : x
  2. Step 2: Convert to fraction form
    214,691.47/321,538.89 = 207,218.30/x
  3. Step 3: Cross multiply
    214,691.47x = 321,538.89 × 207,218.30
  4. Step 4: Simplify right side
    214,691.47x = 66,628,742,169.69
  5. Step 5: Solve for x
    x = 66,628,742,169.69/214,691.47
  6. Step 6: Final answer
    x = 310,346.48

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1.5x scale

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.