Home / 219,286.24-302,612.70-128,624.83

Finding the Fourth Proportional to 219,286.24, 302,612.70 and 128,624.83

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Solution

The fourth proportional to 219,286.24, 302,612.70 and 128,624.83 is: 177,500.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,286.24 : 302,612.70 = 128,624.83 : x
  2. Step 2: Convert to fraction form
    219,286.24/302,612.70 = 128,624.83/x
  3. Step 3: Cross multiply
    219,286.24x = 302,612.70 × 128,624.83
  4. Step 4: Simplify right side
    219,286.24x = 38,923,507,093.34
  5. Step 5: Solve for x
    x = 38,923,507,093.34/219,286.24
  6. Step 6: Final answer
    x = 177,500.91

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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.