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Finding the Fourth Proportional to 302,486.28, 453,694.86 and 80,887.56

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Solution

The fourth proportional to 302,486.28, 453,694.86 and 80,887.56 is: 121,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,486.28 : 453,694.86 = 80,887.56 : x
  2. Step 2: Convert to fraction form
    302,486.28/453,694.86 = 80,887.56/x
  3. Step 3: Cross multiply
    302,486.28x = 453,694.86 × 80,887.56
  4. Step 4: Simplify right side
    302,486.28x = 36,698,270,209.94
  5. Step 5: Solve for x
    x = 36,698,270,209.94/302,486.28
  6. Step 6: Final answer
    x = 121,322.10

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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.