Home / 217,359.45-326,039.18-191,115.45

Finding the Fourth Proportional to 217,359.45, 326,039.18 and 191,115.45

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Solution

The fourth proportional to 217,359.45, 326,039.18 and 191,115.45 is: 286,673.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,359.45 : 326,039.18 = 191,115.45 : x
  2. Step 2: Convert to fraction form
    217,359.45/326,039.18 = 191,115.45/x
  3. Step 3: Cross multiply
    217,359.45x = 326,039.18 × 191,115.45
  4. Step 4: Simplify right side
    217,359.45x = 62,311,123,647.75
  5. Step 5: Solve for x
    x = 62,311,123,647.75/217,359.45
  6. Step 6: Final answer
    x = 286,673.18

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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.