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Finding the Fourth Proportional to 374,738.99, 517,189.83 and 211,429.02

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Solution

The fourth proportional to 374,738.99, 517,189.83 and 211,429.02 is: 291,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,738.99 : 517,189.83 = 211,429.02 : x
  2. Step 2: Convert to fraction form
    374,738.99/517,189.83 = 211,429.02/x
  3. Step 3: Cross multiply
    374,738.99x = 517,189.83 × 211,429.02
  4. Step 4: Simplify right side
    374,738.99x = 109,348,938,910.87
  5. Step 5: Solve for x
    x = 109,348,938,910.87/374,738.99
  6. Step 6: Final answer
    x = 291,800.27

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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.