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Finding the Fourth Proportional to 269,334.80, 403,999.70 and 103,122.80

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Solution

The fourth proportional to 269,334.80, 403,999.70 and 103,122.80 is: 154,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,334.80 : 403,999.70 = 103,122.80 : x
  2. Step 2: Convert to fraction form
    269,334.80/403,999.70 = 103,122.80/x
  3. Step 3: Cross multiply
    269,334.80x = 403,999.70 × 103,122.80
  4. Step 4: Simplify right side
    269,334.80x = 41,661,580,263.16
  5. Step 5: Solve for x
    x = 41,661,580,263.16/269,334.80
  6. Step 6: Final answer
    x = 154,683.24

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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.