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Finding the Fourth Proportional to 300,275.84, 450,538.14 and 131,709.17

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Solution

The fourth proportional to 300,275.84, 450,538.14 and 131,709.17 is: 197,618.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,275.84 : 450,538.14 = 131,709.17 : x
  2. Step 2: Convert to fraction form
    300,275.84/450,538.14 = 131,709.17/x
  3. Step 3: Cross multiply
    300,275.84x = 450,538.14 × 131,709.17
  4. Step 4: Simplify right side
    300,275.84x = 59,340,002,220.05
  5. Step 5: Solve for x
    x = 59,340,002,220.05/300,275.84
  6. Step 6: Final answer
    x = 197,618.31

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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.