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Finding the Fourth Proportional to 389,102.70, 536,870.37 and 236,137.32

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Solution

The fourth proportional to 389,102.70, 536,870.37 and 236,137.32 is: 325,814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,102.70 : 536,870.37 = 236,137.32 : x
  2. Step 2: Convert to fraction form
    389,102.70/536,870.37 = 236,137.32/x
  3. Step 3: Cross multiply
    389,102.70x = 536,870.37 × 236,137.32
  4. Step 4: Simplify right side
    389,102.70x = 126,775,130,359.21
  5. Step 5: Solve for x
    x = 126,775,130,359.21/389,102.70
  6. Step 6: Final answer
    x = 325,814.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.