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Finding the Fourth Proportional to 371,794.12, 513,074.62 and 210,679.88

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Solution

The fourth proportional to 371,794.12, 513,074.62 and 210,679.88 is: 290,737.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,794.12 : 513,074.62 = 210,679.88 : x
  2. Step 2: Convert to fraction form
    371,794.12/513,074.62 = 210,679.88/x
  3. Step 3: Cross multiply
    371,794.12x = 513,074.62 × 210,679.88
  4. Step 4: Simplify right side
    371,794.12x = 108,094,496,807.27
  5. Step 5: Solve for x
    x = 108,094,496,807.27/371,794.12
  6. Step 6: Final answer
    x = 290,737.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.