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Finding the Fourth Proportional to 347,309.88, 520,961.85 and 271,472.22

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Solution

The fourth proportional to 347,309.88, 520,961.85 and 271,472.22 is: 407,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,309.88 : 520,961.85 = 271,472.22 : x
  2. Step 2: Convert to fraction form
    347,309.88/520,961.85 = 271,472.22/x
  3. Step 3: Cross multiply
    347,309.88x = 520,961.85 × 271,472.22
  4. Step 4: Simplify right side
    347,309.88x = 141,426,669,954.81
  5. Step 5: Solve for x
    x = 141,426,669,954.81/347,309.88
  6. Step 6: Final answer
    x = 407,206.01

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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.