Home / 215,569.68-321,668.60-193,154.72

Finding the Fourth Proportional to 215,569.68, 321,668.60 and 193,154.72

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Solution

The fourth proportional to 215,569.68, 321,668.60 and 193,154.72 is: 288,221.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,569.68 : 321,668.60 = 193,154.72 : x
  2. Step 2: Convert to fraction form
    215,569.68/321,668.60 = 193,154.72/x
  3. Step 3: Cross multiply
    215,569.68x = 321,668.60 × 193,154.72
  4. Step 4: Simplify right side
    215,569.68x = 62,131,808,365.79
  5. Step 5: Solve for x
    x = 62,131,808,365.79/215,569.68
  6. Step 6: Final answer
    x = 288,221.46

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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.