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Finding the Fourth Proportional to 347,447.80, 521,123.10 and 110,814.40

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Solution

The fourth proportional to 347,447.80, 521,123.10 and 110,814.40 is: 166,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,447.80 : 521,123.10 = 110,814.40 : x
  2. Step 2: Convert to fraction form
    347,447.80/521,123.10 = 110,814.40/x
  3. Step 3: Cross multiply
    347,447.80x = 521,123.10 × 110,814.40
  4. Step 4: Simplify right side
    347,447.80x = 57,747,943,652.64
  5. Step 5: Solve for x
    x = 57,747,943,652.64/347,447.80
  6. Step 6: Final answer
    x = 166,206.10

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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.