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Finding the Fourth Proportional to 343,412.70, 514,879.05 and 203,099.10

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Solution

The fourth proportional to 343,412.70, 514,879.05 and 203,099.10 is: 304,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,412.70 : 514,879.05 = 203,099.10 : x
  2. Step 2: Convert to fraction form
    343,412.70/514,879.05 = 203,099.10/x
  3. Step 3: Cross multiply
    343,412.70x = 514,879.05 × 203,099.10
  4. Step 4: Simplify right side
    343,412.70x = 104,571,471,663.86
  5. Step 5: Solve for x
    x = 104,571,471,663.86/343,412.70
  6. Step 6: Final answer
    x = 304,506.71

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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.