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Finding the Fourth Proportional to 169,723.40, 254,520.30 and 51,355.40

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Solution

The fourth proportional to 169,723.40, 254,520.30 and 51,355.40 is: 77,013.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,723.40 : 254,520.30 = 51,355.40 : x
  2. Step 2: Convert to fraction form
    169,723.40/254,520.30 = 51,355.40/x
  3. Step 3: Cross multiply
    169,723.40x = 254,520.30 × 51,355.40
  4. Step 4: Simplify right side
    169,723.40x = 13,070,991,814.62
  5. Step 5: Solve for x
    x = 13,070,991,814.62/169,723.40
  6. Step 6: Final answer
    x = 77,013.49

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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.