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Finding the Fourth Proportional to 302,529.92, 453,797.48 and 86,388.09

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Solution

The fourth proportional to 302,529.92, 453,797.48 and 86,388.09 is: 129,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,529.92 : 453,797.48 = 86,388.09 : x
  2. Step 2: Convert to fraction form
    302,529.92/453,797.48 = 86,388.09/x
  3. Step 3: Cross multiply
    302,529.92x = 453,797.48 × 86,388.09
  4. Step 4: Simplify right side
    302,529.92x = 39,202,697,112.07
  5. Step 5: Solve for x
    x = 39,202,697,112.07/302,529.92
  6. Step 6: Final answer
    x = 129,582.88

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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.