Home / 219,292.96-302,591.52-128,614.72

Finding the Fourth Proportional to 219,292.96, 302,591.52 and 128,614.72

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Solution

The fourth proportional to 219,292.96, 302,591.52 and 128,614.72 is: 177,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,292.96 : 302,591.52 = 128,614.72 : x
  2. Step 2: Convert to fraction form
    219,292.96/302,591.52 = 128,614.72/x
  3. Step 3: Cross multiply
    219,292.96x = 302,591.52 × 128,614.72
  4. Step 4: Simplify right side
    219,292.96x = 38,917,723,619.17
  5. Step 5: Solve for x
    x = 38,917,723,619.17/219,292.96
  6. Step 6: Final answer
    x = 177,469.10

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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.