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Finding the Fourth Proportional to 342,071.37, 512,889.70 and 300,035.85

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Solution

The fourth proportional to 342,071.37, 512,889.70 and 300,035.85 is: 449,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,071.37 : 512,889.70 = 300,035.85 : x
  2. Step 2: Convert to fraction form
    342,071.37/512,889.70 = 300,035.85/x
  3. Step 3: Cross multiply
    342,071.37x = 512,889.70 × 300,035.85
  4. Step 4: Simplify right side
    342,071.37x = 153,885,297,095.75
  5. Step 5: Solve for x
    x = 153,885,297,095.75/342,071.37
  6. Step 6: Final answer
    x = 449,863.14

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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.