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Finding the Fourth Proportional to 356,633.60, 534,708 and 169,664

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Solution

The fourth proportional to 356,633.60, 534,708 and 169,664 is: 254,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,633.60 : 534,708 = 169,664 : x
  2. Step 2: Convert to fraction form
    356,633.60/534,708 = 169,664/x
  3. Step 3: Cross multiply
    356,633.60x = 534,708 × 169,664
  4. Step 4: Simplify right side
    356,633.60x = 90,720,698,112
  5. Step 5: Solve for x
    x = 90,720,698,112/356,633.60
  6. Step 6: Final answer
    x = 254,380.68

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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.