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Finding the Fourth Proportional to 378,630.57, 568,050.94 and 210,269.13

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Solution

The fourth proportional to 378,630.57, 568,050.94 and 210,269.13 is: 315,462.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,630.57 : 568,050.94 = 210,269.13 : x
  2. Step 2: Convert to fraction form
    378,630.57/568,050.94 = 210,269.13/x
  3. Step 3: Cross multiply
    378,630.57x = 568,050.94 × 210,269.13
  4. Step 4: Simplify right side
    378,630.57x = 119,443,574,390.31
  5. Step 5: Solve for x
    x = 119,443,574,390.31/378,630.57
  6. Step 6: Final answer
    x = 315,462.05

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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.