Home / 215,087.70-321,975.45-191,468.10

Finding the Fourth Proportional to 215,087.70, 321,975.45 and 191,468.10

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Solution

The fourth proportional to 215,087.70, 321,975.45 and 191,468.10 is: 286,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,087.70 : 321,975.45 = 191,468.10 : x
  2. Step 2: Convert to fraction form
    215,087.70/321,975.45 = 191,468.10/x
  3. Step 3: Cross multiply
    215,087.70x = 321,975.45 × 191,468.10
  4. Step 4: Simplify right side
    215,087.70x = 61,648,027,658.15
  5. Step 5: Solve for x
    x = 61,648,027,658.15/215,087.70
  6. Step 6: Final answer
    x = 286,618.10

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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.