Home / 215,063.16-321,651.54-191,536.68

Finding the Fourth Proportional to 215,063.16, 321,651.54 and 191,536.68

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Solution

The fourth proportional to 215,063.16, 321,651.54 and 191,536.68 is: 286,465.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,063.16 : 321,651.54 = 191,536.68 : x
  2. Step 2: Convert to fraction form
    215,063.16/321,651.54 = 191,536.68/x
  3. Step 3: Cross multiply
    215,063.16x = 321,651.54 × 191,536.68
  4. Step 4: Simplify right side
    215,063.16x = 61,608,068,088.49
  5. Step 5: Solve for x
    x = 61,608,068,088.49/215,063.16
  6. Step 6: Final answer
    x = 286,465.00

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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.