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Finding the Fourth Proportional to 253,362.40, 380,021.73 and 75,909.22

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Solution

The fourth proportional to 253,362.40, 380,021.73 and 75,909.22 is: 113,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,362.40 : 380,021.73 = 75,909.22 : x
  2. Step 2: Convert to fraction form
    253,362.40/380,021.73 = 75,909.22/x
  3. Step 3: Cross multiply
    253,362.40x = 380,021.73 × 75,909.22
  4. Step 4: Simplify right side
    253,362.40x = 28,847,153,107.35
  5. Step 5: Solve for x
    x = 28,847,153,107.35/253,362.40
  6. Step 6: Final answer
    x = 113,857.28

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1.5x scale

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.