Home / 214,645.20-321,660.60-148,904.40

Finding the Fourth Proportional to 214,645.20, 321,660.60 and 148,904.40

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Solution

The fourth proportional to 214,645.20, 321,660.60 and 148,904.40 is: 223,143.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,645.20 : 321,660.60 = 148,904.40 : x
  2. Step 2: Convert to fraction form
    214,645.20/321,660.60 = 148,904.40/x
  3. Step 3: Cross multiply
    214,645.20x = 321,660.60 × 148,904.40
  4. Step 4: Simplify right side
    214,645.20x = 47,896,678,646.64
  5. Step 5: Solve for x
    x = 47,896,678,646.64/214,645.20
  6. Step 6: Final answer
    x = 223,143.49

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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.