Home / 215,414.76-297,279.20-134,816.52

Finding the Fourth Proportional to 215,414.76, 297,279.20 and 134,816.52

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Solution

The fourth proportional to 215,414.76, 297,279.20 and 134,816.52 is: 186,051.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,414.76 : 297,279.20 = 134,816.52 : x
  2. Step 2: Convert to fraction form
    215,414.76/297,279.20 = 134,816.52/x
  3. Step 3: Cross multiply
    215,414.76x = 297,279.20 × 134,816.52
  4. Step 4: Simplify right side
    215,414.76x = 40,078,147,212.38
  5. Step 5: Solve for x
    x = 40,078,147,212.38/215,414.76
  6. Step 6: Final answer
    x = 186,051.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.