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Finding the Fourth Proportional to 302,300.88, 453,451.28 and 91,939

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Solution

The fourth proportional to 302,300.88, 453,451.28 and 91,939 is: 137,908.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,300.88 : 453,451.28 = 91,939 : x
  2. Step 2: Convert to fraction form
    302,300.88/453,451.28 = 91,939/x
  3. Step 3: Cross multiply
    302,300.88x = 453,451.28 × 91,939
  4. Step 4: Simplify right side
    302,300.88x = 41,689,857,231.92
  5. Step 5: Solve for x
    x = 41,689,857,231.92/302,300.88
  6. Step 6: Final answer
    x = 137,908.49

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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.