Home / 215,570.68-321,670.09-193,155.72

Finding the Fourth Proportional to 215,570.68, 321,670.09 and 193,155.72

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Solution

The fourth proportional to 215,570.68, 321,670.09 and 193,155.72 is: 288,222.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,570.68 : 321,670.09 = 193,155.72 : x
  2. Step 2: Convert to fraction form
    215,570.68/321,670.09 = 193,155.72/x
  3. Step 3: Cross multiply
    215,570.68x = 321,670.09 × 193,155.72
  4. Step 4: Simplify right side
    215,570.68x = 62,132,417,836.41
  5. Step 5: Solve for x
    x = 62,132,417,836.41/215,570.68
  6. Step 6: Final answer
    x = 288,222.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.