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Finding the Fourth Proportional to 214,236.99, 320,903.40 and 171,887.79

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Solution

The fourth proportional to 214,236.99, 320,903.40 and 171,887.79 is: 257,468.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,236.99 : 320,903.40 = 171,887.79 : x
  2. Step 2: Convert to fraction form
    214,236.99/320,903.40 = 171,887.79/x
  3. Step 3: Cross multiply
    214,236.99x = 320,903.40 × 171,887.79
  4. Step 4: Simplify right side
    214,236.99x = 55,159,376,229.49
  5. Step 5: Solve for x
    x = 55,159,376,229.49/214,236.99
  6. Step 6: Final answer
    x = 257,468.97

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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.