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Finding the Fourth Proportional to 300,313.19, 449,995.58 and 243,878.67

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Solution

The fourth proportional to 300,313.19, 449,995.58 and 243,878.67 is: 365,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,313.19 : 449,995.58 = 243,878.67 : x
  2. Step 2: Convert to fraction form
    300,313.19/449,995.58 = 243,878.67/x
  3. Step 3: Cross multiply
    300,313.19x = 449,995.58 × 243,878.67
  4. Step 4: Simplify right side
    300,313.19x = 109,744,323,556.28
  5. Step 5: Solve for x
    x = 109,744,323,556.28/300,313.19
  6. Step 6: Final answer
    x = 365,432.91

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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.