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Finding the Fourth Proportional to 300,325.35, 450,482.72 and 75,680.76

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Solution

The fourth proportional to 300,325.35, 450,482.72 and 75,680.76 is: 113,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,325.35 : 450,482.72 = 75,680.76 : x
  2. Step 2: Convert to fraction form
    300,325.35/450,482.72 = 75,680.76/x
  3. Step 3: Cross multiply
    300,325.35x = 450,482.72 × 75,680.76
  4. Step 4: Simplify right side
    300,325.35x = 34,092,875,927.37
  5. Step 5: Solve for x
    x = 34,092,875,927.37/300,325.35
  6. Step 6: Final answer
    x = 113,519.81

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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.