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Finding the Fourth Proportional to 269,313.30, 403,973.46 and 129,039.12

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Solution

The fourth proportional to 269,313.30, 403,973.46 and 129,039.12 is: 193,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,313.30 : 403,973.46 = 129,039.12 : x
  2. Step 2: Convert to fraction form
    269,313.30/403,973.46 = 129,039.12/x
  3. Step 3: Cross multiply
    269,313.30x = 403,973.46 × 129,039.12
  4. Step 4: Simplify right side
    269,313.30x = 52,128,379,781.76
  5. Step 5: Solve for x
    x = 52,128,379,781.76/269,313.30
  6. Step 6: Final answer
    x = 193,560.36

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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.